{"id":42239,"date":"2025-07-20T02:38:39","date_gmt":"2025-07-20T02:38:39","guid":{"rendered":"https:\/\/staging.pageloot.com\/uncategorized\/best-qr-code-sizes-for-business-cards\/"},"modified":"2026-04-22T13:14:09","modified_gmt":"2026-04-22T13:14:09","slug":"best-qr-code-sizes-for-business-cards","status":"publish","type":"post","link":"https:\/\/pageloot.com\/vi\/blog\/best-qr-code-sizes-for-business-cards\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn v\u1ec1 K\u00edch th\u01b0\u1edbc m\u00e3 QR tr\u00ean Danh thi\u1ebfp"},"content":{"rendered":"<p class=\"wp-block-paragraph\">M\u00e3 QR tr\u00ean danh thi\u1ebfp c\u1ee7a b\u1ea1n c\u00f3 qu\u00e1 nh\u1ecf \u0111\u1ec3 qu\u00e9t \u0111\u00e1ng tin c\u1eady kh\u00f4ng? M\u1ed9t m\u00e3 kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng s\u1ebd g\u00e2y kh\u00f3 ch\u1ecbu cho kh\u00e1ch h\u00e0ng ti\u1ec1m n\u0103ng v\u00e0 khi\u1ebfn th\u01b0\u01a1ng hi\u1ec7u chuy\u00ean nghi\u1ec7p c\u1ee7a b\u1ea1n tr\u00f4ng kh\u00f4ng \u0111\u00e1ng tin c\u1eady. H\u01b0\u1edbng d\u1eabn n\u00e0y cung c\u1ea5p c\u00e1c k\u00edch th\u01b0\u1edbc v\u00e0 ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt b\u1ea1n c\u1ea7n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00e3 c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng ho\u00e0n h\u1ea3o m\u1ecdi l\u00fac.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u00edch th\u01b0\u1edbc m\u00e3 QR \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t v\u00e0 t\u1ed1i thi\u1ec3u<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi thi\u1ebft k\u1ebf danh thi\u1ebfp, b\u1ea1n \u0111ang l\u00e0m vi\u1ec7c v\u1edbi kh\u00f4ng gian c\u1ef1c k\u1ef3 h\u1ea1n ch\u1ebf. M\u1eb7c d\u00f9 b\u1ea1n mu\u1ed1n ti\u1ebft ki\u1ec7m kh\u00f4ng gian cho t\u00ean v\u00e0 logo c\u1ee7a m\u00ecnh, nh\u01b0ng vi\u1ec7c thu nh\u1ecf m\u00e3 QR qu\u00e1 m\u1ee9c s\u1ebd d\u1eabn \u0111\u1ebfn l\u1ed7i qu\u00e9t. \u0110\u1ed1i v\u1edbi m\u1ed9t danh thi\u1ebfp ti\u00eau chu\u1ea9n, k\u00edch th\u01b0\u1edbc <strong>\u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t l\u00e0 0.8 x 0.8 inch (2 x 2 cm)<\/strong>. K\u00edch th\u01b0\u1edbc n\u00e0y cung c\u1ea5p \u0111\u1ee7 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t \u0111\u1ec3 h\u1ea7u h\u1ebft camera \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh c\u00f3 th\u1ec3 l\u1ea5y n\u00e9t nhanh ch\u00f3ng, ngay c\u1ea3 trong \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng y\u1ebfu ho\u1eb7c t\u1eeb m\u1ed9t kho\u1ea3ng c\u00e1ch nh\u1ecf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n \u0111\u1eb7c bi\u1ec7t ch\u1eadt ch\u1ed9i, th\u00ec <strong>k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u tuy\u1ec7t \u0111\u1ed1i l\u00e0 0.6 x 0.6 inch (1.5 x 1.5 cm)<\/strong>. Tuy nhi\u00ean, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u n\u00e0y, m\u00e3 c\u1ea7n c\u00f3 m\u1eadt \u0111\u1ed9 d\u1eef li\u1ec7u r\u1ea5t th\u1ea5p v\u00e0 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n cao \u0111\u1ec3 duy tr\u00ec ch\u1ee9c n\u0103ng. M\u00e1y qu\u00e9t th\u01b0\u1eddng tu\u00e2n theo t\u1ef7 l\u1ec7 10:1, ngh\u0129a l\u00e0 m\u00e3 n\u00ean r\u1ed9ng 1 cm cho m\u1ed7i 10 cm kho\u1ea3ng c\u00e1ch. V\u00ec danh thi\u1ebfp th\u01b0\u1eddng \u0111\u01b0\u1ee3c gi\u1eef c\u00e1ch 4 \u0111\u1ebfn 10 inch, m\u1ed9t m\u00e3 nh\u1ecf h\u01a1n 0.6 inch th\u01b0\u1eddng n\u1eb1m ngo\u00e0i ph\u1ea1m vi l\u1ea5y n\u00e9t c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb di \u0111\u1ed9ng c\u0169 h\u01a1n.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/03\/simple-clean-infographic-square-or-vertical-layout-on-white-background-with-bla-6541-61c17d09894d.webp\" alt=\"h\u01b0\u1edbng d\u1eabn k\u00edch th\u01b0\u1edbc m\u00e3 QR c\u1ee7a ch\u00fang t\u00f4i\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"wp-block-table__content\">\n<thead>\n<tr>\n<th>Danh m\u1ee5c k\u00edch th\u01b0\u1edbc<\/th>\n<th>K\u00edch th\u01b0\u1edbc (Inch)<\/th>\n<th>K\u00edch th\u01b0\u1edbc (cm)<\/th>\n<th>\u0110\u1ed9 tin c\u1eady<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u0110\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/td>\n<td>0.8 x 0.8 inch<\/td>\n<td>2.0 x 2.0 cm<\/td>\n<td>Cao<\/td>\n<\/tr>\n<tr>\n<td>T\u1ed1i thi\u1ec3u<\/td>\n<td>0.6 x 0.6 inch<\/td>\n<td>1,5 x 1,5cm<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<\/tr>\n<tr>\n<td>M\u1eadt \u0111\u1ed9 cao<\/td>\n<td>1.2 x 1.2 inch+<\/td>\n<td>3.0 x 3.0 cm+<\/td>\n<td>Cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c c\u00f4ng c\u1ee5 k\u1ebft n\u1ed1i m\u1ea1ng c\u1ee7a b\u1ea1n chuy\u00ean nghi\u1ec7p v\u00e0 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3, h\u00e3y s\u1eed d\u1ee5ng m\u1ed9t <a href=\"https:\/\/pageloot.com\/vi\/business-card-qr-code-generator\/\">Tr\u00ecnh t\u1ea1o m\u00e3 QR danh thi\u1ebfp<\/a> \u0111\u1ec3 t\u1ea1o c\u00e1c t\u1ec7p c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i cao, duy tr\u00ec t\u00ednh to\u00e0n v\u1eb9n trong qu\u00e1 tr\u00ecnh in.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1ea1i sao m\u1eadt \u0111\u1ed9 d\u1eef li\u1ec7u \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn k\u00edch th\u01b0\u1edbc qu\u00e9t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd c\u1ee7a m\u00e3 QR c\u1ee7a b\u1ea1n li\u00ean quan tr\u1ef1c ti\u1ebfp \u0111\u1ebfn l\u01b0\u1ee3ng th\u00f4ng tin m\u00e0 n\u00f3 ch\u1ee9a. M\u1ed9t URL \u0111\u01a1n gi\u1ea3n t\u1ea1o ra m\u1ed9t m\u00e3 s\u1ea1ch v\u1edbi c\u00e1c m\u00f4-\u0111un l\u1edbn \u2013 c\u00e1c \u00f4 vu\u00f4ng nh\u1ecf t\u1ea1o n\u00ean l\u01b0\u1edbi \u2013 trong khi m\u1ed9t <a href=\"https:\/\/pageloot.com\/vi\/vcard-qr-code-generator\/\">vCard m\u00e3 QR<\/a> ch\u1ee9a t\u00ean, s\u1ed1 \u0111i\u1ec7n tho\u1ea1i v\u00e0 \u0111\u1ecba ch\u1ec9 t\u1ea1o ra m\u1ed9t m\u00e3 d\u00e0y \u0111\u1eb7c v\u1edbi nhi\u1ec1u m\u00f4-\u0111un nh\u1ecf li ti. Khi <a href=\"https:\/\/pageloot.com\/vi\/how-to\/understand-qr-code-data-limits\/\">gi\u1edbi h\u1ea1n d\u1eef li\u1ec7u c\u1ee7a m\u00e3 QR<\/a> t\u0103ng l\u00ean, c\u00e1c m\u00f4-\u0111un n\u00e0y s\u1ebd thu nh\u1ecf l\u1ea1i. N\u1ebfu ch\u00fang tr\u1edf n\u00ean qu\u00e1 nh\u1ecf, m\u00e1y \u1ea3nh kh\u00f4ng th\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c gi\u1eefa ch\u00fang, khi\u1ebfn qu\u00e1 tr\u00ecnh qu\u00e9t b\u1ecb l\u1ed7i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 gi\u1eef m\u00e3 c\u1ee7a b\u1ea1n nh\u1ecf g\u1ecdn nh\u01b0ng v\u1eabn c\u00f3 th\u1ec3 qu\u00e9t \u0111\u01b0\u1ee3c, h\u00e3y xem x\u00e9t c\u00e1c chi\u1ebfn l\u01b0\u1ee3c sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>  S\u1eed d\u1ee5ng m\u1ed9t <a href=\"https:\/\/pageloot.com\/vi\/digital-business-card-qr-code\/\">m\u00e3 QR danh thi\u1ebfp k\u1ef9 thu\u1eadt s\u1ed1<\/a> s\u1eed d\u1ee5ng m\u1ed9t li\u00ean k\u1ebft \u0111\u1ed9ng ng\u1eafn \u0111\u1ec3 gi\u1eef s\u1ed1 l\u01b0\u1ee3ng m\u00f4-\u0111un th\u1ea5p.<\/li>\n<li>  Gi\u1edbi h\u1ea1n v\u0103n b\u1ea3n \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a ch\u1ec9 ch\u1ee9a th\u00f4ng tin c\u1ea7n thi\u1ebft nh\u1ea5t.<\/li>\n<li>  Tr\u00e1nh nh\u00fang l\u01b0\u1ee3ng l\u1edbn d\u1eef li\u1ec7u th\u00f4 tr\u1ef1c ti\u1ebfp v\u00e0o m\u00e3.<\/li>\n<li>  \u00d4n t\u1eadp <a href=\"https:\/\/pageloot.com\/vi\/how-to\/business-card-design-qr-code\/\">c\u00e1ch thi\u1ebft k\u1ebf danh thi\u1ebfp c\u00f3 m\u00e3 QR<\/a> \u0111\u1ec3 c\u00e2n b\u1eb1ng t\u00ednh th\u1ea9m m\u1ef9 v\u1edbi c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c Ti\u00eau Chu\u1ea9n K\u1ef9 Thu\u1eadt Thi\u1ebft Y\u1ebfu \u0111\u1ec3 C\u00f3 Th\u1ec3 Qu\u00e9t \u0110\u01b0\u1ee3c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">K\u00edch th\u01b0\u1edbc ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a ph\u01b0\u01a1ng tr\u00ecnh; m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt quy\u1ebft \u0111\u1ecbnh li\u1ec7u \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh c\u00f3 th\u1ec3 gi\u1ea3i th\u00edch d\u1eef li\u1ec7u th\u00e0nh c\u00f4ng hay kh\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00f9ng Y\u00ean T\u0129nh v\u00e0 Y\u00eau C\u1ea7u V\u1ec1 L\u1ec1<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cV\u00f9ng Y\u00ean T\u0129nh\u201d l\u00e0 \u0111\u01b0\u1eddng vi\u1ec1n tr\u1ed1ng bao quanh m\u00e3 QR, t\u00e1ch n\u00f3 kh\u1ecfi c\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf kh\u00e1c. Ti\u00eau chu\u1ea9n ISO\/IEC 18004 quy \u0111\u1ecbnh r\u1eb1ng \u0111\u01b0\u1eddng vi\u1ec1n n\u00e0y ph\u1ea3i c\u00f3 \u00edt nh\u1ea5t <strong>r\u1ed9ng b\u1ed1n m\u00f4-\u0111un<\/strong> \u1edf t\u1ea5t c\u1ea3 c\u00e1c c\u1ea1nh. Kh\u00f4ng gian n\u00e0y ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t v\u00f9ng \u0111\u1ec7m b\u1ea3o v\u1ec7, cho m\u00e1y qu\u00e9t bi\u1ebft ch\u00ednh x\u00e1c m\u00e3 b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u00e2u. Vi\u1ec7c l\u1ea5p \u0111\u1ea7y khu v\u1ef1c n\u00e0y b\u1eb1ng v\u0103n b\u1ea3n ho\u1eb7c \u0111\u1ed3 h\u1ecda l\u00e0 m\u1ed9t trong nh\u1eefng <a href=\"https:\/\/pageloot.com\/vi\/blog\/qr-code-not-working-causes-solutions\/\">l\u00fd do ph\u1ed5 bi\u1ebfn nh\u1ea5t khi\u1ebfn m\u00e3 QR kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng<\/a> khi in.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed9 T\u01b0\u01a1ng Ph\u1ea3n M\u00e0u S\u1eafc Cao v\u00e0 Kh\u1ea3 N\u0103ng Hi\u1ec3n Th\u1ecb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e1y qu\u00e9t d\u1ef1a v\u00e0o s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 \u0111\u1ed9 ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng gi\u1eefa c\u00e1c m\u00f4-\u0111un t\u1ed1i v\u00e0 n\u1ec1n s\u00e1ng. B\u1ea1n n\u00ean \u0111\u1eb7t m\u1ee5c ti\u00eau \u0111\u1ea1t \u0111\u01b0\u1ee3c <a href=\"https:\/\/pageloot.com\/vi\/blog\/qr-code-color-contrast-best-practices\/\">t\u1ef7 l\u1ec7 t\u01b0\u01a1ng ph\u1ea3n \u00edt nh\u1ea5t 4:1<\/a> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng truy c\u1eadp trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u00e1nh s\u00e1ng kh\u00e1c nhau. M\u1eb7c d\u00f9 m\u00e0u \u0111en tr\u00ean n\u1ec1n tr\u1eafng cung c\u1ea5p t\u1ef7 l\u1ec7 21:1 \u0111\u00e1ng tin c\u1eady nh\u1ea5t, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e0u s\u1eafc th\u01b0\u01a1ng hi\u1ec7u mi\u1ec5n l\u00e0 ti\u1ec1n c\u1ea3nh v\u1eabn t\u1ed1i h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi n\u1ec1n. Tr\u00e1nh c\u00e1c thi\u1ebft k\u1ebf \u0111\u1ea3o ng\u01b0\u1ee3c \u2013 m\u00e3 s\u00e1ng tr\u00ean n\u1ec1n t\u1ed1i \u2013 v\u00ec nhi\u1ec1u \u1ee9ng d\u1ee5ng qu\u00e9t c\u0169 g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c nh\u1eadn di\u1ec7n ch\u00fang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ch\u1ea5t L\u01b0\u1ee3ng In v\u00e0 \u0110\u1ed9 Ph\u00e2n Gi\u1ea3i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Danh thi\u1ebfp y\u00eau c\u1ea7u in \u0111\u1ed9 ch\u00ednh x\u00e1c cao \u0111\u1ec3 gi\u1eef cho c\u00e1c m\u00f4-\u0111un s\u1eafc n\u00e9t. Thi\u1ebft k\u1ebf c\u1ee7a b\u1ea1n n\u00ean \u0111\u01b0\u1ee3c xu\u1ea5t \u1edf m\u1ee9c t\u1ed1i thi\u1ec3u <strong>300 \u0111\u1ebfn 600 DPI<\/strong>. H\u00ecnh \u1ea3nh c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i th\u1ea5p, ch\u1eb3ng h\u1ea1n nh\u01b0 JPEG 72 DPI, th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n b\u1ecb v\u1ee1 h\u1ea1t khi in, l\u00e0m m\u1edd c\u00e1c c\u1ea1nh c\u1ee7a c\u00e1c m\u00f4-\u0111un. \u0110\u1ec3 c\u00f3 k\u1ebft qu\u1ea3 t\u1ed1t nh\u1ea5t, h\u00e3y lu\u00f4n s\u1eed d\u1ee5ng c\u00e1c \u0111\u1ecbnh d\u1ea1ng vector nh\u01b0 SVG ho\u1eb7c EPS. C\u00e1c \u0111\u1ecbnh d\u1ea1ng n\u00e0y cho ph\u00e9p b\u1ea1n \u0111i\u1ec1u ch\u1ec9nh k\u00edch th\u01b0\u1edbc m\u00e3 m\u00e0 kh\u00f4ng l\u00e0m m\u1ea5t \u0111i \u0111\u1ed9 s\u1eafc n\u00e9t, \u0111\u1ea3m b\u1ea3o <a href=\"https:\/\/pageloot.com\/vi\/blog\/best-practices-for-qr-code-readability\/\">kh\u1ea3 n\u0103ng \u0111\u1ecdc t\u1ed1i \u01b0u<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">S\u1eeda l\u1ed7i v\u00e0 Thi\u1ebft k\u1ebf t\u00f9y ch\u1ec9nh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eeda l\u1ed7i cho ph\u00e9p m\u00e3 QR v\u1eabn ho\u1ea1t \u0111\u1ed9ng ngay c\u1ea3 khi n\u00f3 b\u1ecb h\u01b0 h\u1ecfng nh\u1eb9 ho\u1eb7c b\u1ecb che khu\u1ea5t m\u1ed9t ph\u1ea7n b\u1edfi logo. S\u1ef1 d\u01b0 th\u1eeba n\u00e0y \u0111\u1ea1t \u0111\u01b0\u1ee3c th\u00f4ng qua thu\u1eadt to\u00e1n Reed\u2013Solomon, c\u00f3 th\u1ec3 kh\u00f4i ph\u1ee5c d\u1eef li\u1ec7u b\u1ecb m\u1ea5t.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>  C\u1ea5p \u0111\u1ed9 L (kh\u00f4i ph\u1ee5c 7%): T\u1ed1t nh\u1ea5t cho c\u00e1c m\u00e3 \u0111\u01a1n gi\u1ea3n, nh\u1ecf kh\u00f4ng c\u00f3 thay \u0111\u1ed5i thi\u1ebft k\u1ebf.<\/li>\n<li>  C\u1ea5p \u0111\u1ed9 M (kh\u00f4i ph\u1ee5c 15%): S\u1ef1 c\u00e2n b\u1eb1ng ti\u00eau chu\u1ea9n cho h\u1ea7u h\u1ebft c\u00e1c danh thi\u1ebfp chuy\u00ean nghi\u1ec7p.<\/li>\n<li>  C\u1ea5p \u0111\u1ed9 Q (kh\u00f4i ph\u1ee5c 25%): L\u00fd t\u01b0\u1edfng cho c\u00e1c th\u1ebb c\u00f3 th\u1ec3 ph\u1ea3i \u0111\u1ed1i m\u1eb7t v\u1edbi vi\u1ec7c x\u1eed l\u00fd v\u00e0 hao m\u00f2n th\u01b0\u1eddng xuy\u00ean.<\/li>\n<li>  C\u1ea5p \u0111\u1ed9 H (kh\u00f4i ph\u1ee5c 30%): B\u1eaft bu\u1ed9c n\u1ebfu b\u1ea1n \u0111\u1ecbnh <a href=\"https:\/\/pageloot.com\/vi\/blog\/best-practices-for-qr-code-readability\/\">th\u00eam logo v\u00e0o m\u00e3 QR c\u1ee7a b\u1ea1n<\/a>.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y nh\u1edb r\u1eb1ng <a href=\"https:\/\/pageloot.com\/vi\/blog\/how-error-correction-works-in-editable-qr-codes\/\">c\u00e1c c\u1ea5p \u0111\u1ed9 s\u1eeda l\u1ed7i cao h\u01a1n<\/a> l\u00e0m t\u0103ng m\u1eadt \u0111\u1ed9 c\u1ee7a m\u00e3. N\u1ebfu b\u1ea1n ch\u1ecdn C\u1ea5p \u0111\u1ed9 H \u0111\u1ec3 c\u00f3 giao di\u1ec7n th\u01b0\u01a1ng hi\u1ec7u, b\u1ea1n c\u00f3 th\u1ec3 s\u1ebd c\u1ea7n t\u0103ng k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd c\u1ee7a m\u00e3 QR v\u01b0\u1ee3t qu\u00e1 m\u1ee9c t\u1ed1i thi\u1ec3u 0,6 inch \u0111\u1ec3 duy tr\u00ec kh\u1ea3 n\u0103ng qu\u00e9t. \u0110\u1ec3 c\u00f3 c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n v\u1ec1 c\u00e1ch c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y t\u01b0\u01a1ng t\u00e1c, h\u00e3y tham kh\u1ea3o <a href=\"https:\/\/pageloot.com\/vi\/how-to\/qr-code-size-guide\/\">h\u01b0\u1edbng d\u1eabn k\u00edch th\u01b0\u1edbc m\u00e3 QR c\u1ee7a ch\u00fang t\u00f4i<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ch\u1ecdn V\u1eadt li\u1ec7u v\u00e0 L\u1edbp ho\u00e0n thi\u1ec7n ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1eadt li\u1ec7u v\u1eadt l\u00fd c\u1ee7a th\u1ebb \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1ch \u00e1nh s\u00e1ng t\u01b0\u01a1ng t\u00e1c v\u1edbi \u1ed1ng k\u00ednh m\u00e1y \u1ea3nh. L\u1edbp ho\u00e0n thi\u1ec7n m\u1edd th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean \u0111\u1ec3 qu\u00e9t v\u00ec ch\u00fang khu\u1ebfch t\u00e1n \u00e1nh s\u00e1ng v\u00e0 gi\u1ea3m ch\u00f3i. Ng\u01b0\u1ee3c l\u1ea1i, l\u1edbp ho\u00e0n thi\u1ec7n b\u00f3ng ho\u1eb7c kim lo\u1ea1i c\u00f3 th\u1ec3 ph\u1ea3n chi\u1ebfu \u00e1nh s\u00e1ng tr\u1ef1c ti\u1ebfp v\u00e0o m\u00e1y \u1ea3nh, t\u1ea1o ra \u201c\u0111i\u1ec3m m\u00f9\u201d ng\u0103n m\u00e1y qu\u00e9t \u0111\u1ecdc c\u00e1c m\u00f4-\u0111un.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/03\/minimal-modern-illustration-square-format-white-background-with-blue-and-light-851-a9794c0805f9.webp\" alt=\"th\u1ebb m\u1edd so v\u1edbi th\u1ebb b\u00f3ng\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n ph\u1ea3i s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u b\u00f3ng, h\u00e3y \u0111\u1eb7t m\u00e3 QR c\u1ee7a b\u1ea1n \u1edf khu v\u1ef1c \u00edt b\u1ecb u\u1ed1n cong ho\u1eb7c ph\u1ea3n chi\u1ebfu tr\u1ef1c ti\u1ebfp. B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y l\u1eddi khuy\u00ean c\u1ee5 th\u1ec3 h\u01a1n v\u1ec1 c\u00e1ch x\u1eed l\u00fd c\u00e1c b\u1ec1 m\u1eb7t kh\u00e1c nhau trong h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/pageloot.com\/vi\/blog\/qr-code-sizing-for-different-print-materials\/\">k\u00edch th\u01b0\u1edbc m\u00e3 QR cho c\u00e1c v\u1eadt li\u1ec7u in kh\u00e1c nhau<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-b4a620c3e02d\"><strong class=\"schema-faq-question\">K\u00edch th\u01b0\u1edbc nh\u1ecf nh\u1ea5t tuy\u1ec7t \u0111\u1ed1i cho m\u00e3 QR tr\u00ean danh thi\u1ebfp l\u00e0 bao nhi\u00eau?<\/strong> <p class=\"schema-faq-answer\">K\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u tuy\u1ec7t \u0111\u1ed1i l\u00e0 0.6 x 0.6 inch (1.5 x 1.5 cm). K\u00edch th\u01b0\u1edbc n\u00e0y ch\u1ec9 \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb cho c\u00e1c thi\u1ebft k\u1ebf c\u00f3 \u0111\u1ed9 t\u01b0\u01a1ng ph\u1ea3n cao v\u1edbi r\u1ea5t \u00edt d\u1eef li\u1ec7u, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u1ed9t URL trang web \u0111\u01a1n gi\u1ea3n. \u0110\u1ed1i v\u1edbi h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng, vi\u1ec7c gi\u1eef k\u00edch th\u01b0\u1edbc t\u1eeb 0.8 inch (2 cm) tr\u1edf l\u00ean s\u1ebd \u0111\u1ea3m b\u1ea3o t\u1ef7 l\u1ec7 th\u00e0nh c\u00f4ng cao h\u01a1n nhi\u1ec1u cho c\u00e1c li\u00ean h\u1ec7 c\u1ee7a b\u1ea1n.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-c1aa11d1a11b\"><strong class=\"schema-faq-question\">T\u00f4i c\u00f3 th\u1ec3 \u0111\u1eb7t logo c\u00f4ng ty c\u1ee7a m\u00ecnh v\u00e0o gi\u1eefa m\u1ed9t m\u00e3 QR nh\u1ecf kh\u00f4ng?<\/strong> <p class=\"schema-faq-answer\">B\u1ea1n c\u00f3 th\u1ec3, nh\u01b0ng \u0111i\u1ec1u \u0111\u00f3 y\u00eau c\u1ea7u s\u1eed d\u1ee5ng t\u00ednh n\u0103ng s\u1eeda l\u1ed7i C\u1ea5p \u0111\u1ed9 H \u0111\u1ec3 b\u00f9 \u0111\u1eafp cho v\u00f9ng d\u1eef li\u1ec7u b\u1ecb che. V\u00ec C\u1ea5p \u0111\u1ed9 H l\u00e0m cho l\u01b0\u1edbi d\u00e0y \u0111\u1eb7c h\u01a1n nhi\u1ec1u, b\u1ea1n n\u00ean t\u0103ng k\u00edch th\u01b0\u1edbc t\u1ed5ng th\u1ec3 c\u1ee7a m\u00e3 QR l\u00ean \u00edt nh\u1ea5t 1 x 1 inch \u0111\u1ec3 gi\u1eef cho c\u00e1c m\u00f4-\u0111un ri\u00eang l\u1ebb \u0111\u1ee7 l\u1edbn \u0111\u1ec3 m\u00e1y \u1ea3nh c\u00f3 th\u1ec3 l\u1ea5y n\u00e9t.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-83986a06265b\"><strong class=\"schema-faq-question\">T\u1ea1i sao m\u00e3 QR c\u1ee7a t\u00f4i kh\u00f4ng qu\u00e9t \u0111\u01b0\u1ee3c m\u1eb7c d\u00f9 k\u00edch th\u01b0\u1edbc \u0111\u00e3 \u0111\u00fang?<\/strong> <p class=\"schema-faq-answer\">If the size is correct, the issue is likely a lack of a &#8220;quiet zone&#8221; border, low color contrast, or poor print resolution. Ensure there is a clear margin of at least four modules around the code and that you used a high-resolution vector file rather than a screenshot or low-quality PNG. Successful networking depends on how easily people can connect with you in a digital-first world. By following these sizing guidelines and technical standards, you ensure that your business card serves as a flawless gateway to your professional presence. To create a durable, high-resolution code for your next print run, explore our professional business card QR code generator today.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ea3m b\u1ea3o m\u00e3 QR tr\u00ean danh thi\u1ebfp c\u1ee7a b\u1ea1n lu\u00f4n qu\u00e9t \u0111\u01b0\u1ee3c. T\u00ecm hi\u1ec3u k\u00edch th\u01b0\u1edbc khuy\u1ebfn ngh\u1ecb 0.8 x 0.8 inch, gi\u1edbi h\u1ea1n k\u00edch th\u01b0\u1edbc t\u1ed1i thi\u1ec3u v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt \u0111\u1ec3 in.<\/p>","protected":false},"author":17,"featured_media":50427,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2635],"tags":[],"class_list":["post-42239","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.7 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Guidelines for QR Code Sizes on Business Cards<\/title>\n<meta name=\"description\" content=\"Ensure your business card QR code scans every time. Learn the recommended 0.8 x 0.8 inch dimensions, minimum size limits, and technical standards for printing.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pageloot.com\/vi\/blog\/best-qr-code-sizes-for-business-cards\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Guidelines for QR Code Sizes on Business Cards\" \/>\n<meta property=\"og:description\" content=\"Ensure your business card QR code scans every time. Learn the recommended 0.8 x 0.8 inch dimensions, minimum size limits, and technical standards for printing.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pageloot.com\/vi\/blog\/best-qr-code-sizes-for-business-cards\/\" \/>\n<meta property=\"og:site_name\" content=\"Pageloot\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/pageloot\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-20T02:38:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-22T13:14:09+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/03\/photorealistic-lifestyle-scene-of-a-professional-holding-a-modern-business-card-3521-bec6dfa14e74.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1408\" \/>\n\t<meta property=\"og:image:height\" content=\"768\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Siim T\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@getpageloot\" \/>\n<meta name=\"twitter:site\" content=\"@getpageloot\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"Siim T\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-qr-code-sizes-for-business-cards\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-qr-code-sizes-for-business-cards\\\/\"},\"author\":{\"name\":\"Siim T\",\"@id\":\"https:\\\/\\\/pageloot.com\\\/es\\\/#\\\/schema\\\/person\\\/fa28992c2e52546f0812833bac852dfe\"},\"headline\":\"Guidelines for QR Code Sizes on Business Cards\",\"datePublished\":\"2025-07-20T02:38:39+00:00\",\"dateModified\":\"2026-04-22T13:14:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-qr-code-sizes-for-business-cards\\\/\"},\"wordCount\":1158,\"publisher\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/es\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-qr-code-sizes-for-business-cards\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pageloot.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/photorealistic-lifestyle-scene-of-a-professional-holding-a-modern-business-card-3521-bec6dfa14e74.webp\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"vi\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-qr-code-sizes-for-business-cards\\\/\",\"url\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-qr-code-sizes-for-business-cards\\\/\",\"name\":\"Guidelines for QR Code Sizes on Business Cards\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/es\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-qr-code-sizes-for-business-cards\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pageloot.com\\\/blog\\\/best-qr-code-sizes-for-business-cards\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pageloot.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/photorealistic-lifestyle-scene-of-a-professional-holding-a-modern-business-card-3521-bec6dfa14e74.webp\",\"datePublished\":\"2025-07-20T02:38:39+00:00\",\"dateModified\":\"2026-04-22T13:14:09+00:00\",\"description\":\"Ensure your business card QR code scans every time. 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Siim c\u00f3 n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt s\u1ed1 s\u00e2u r\u1ed9ng v\u1edbi h\u01a1n 10 n\u0103m kinh nghi\u1ec7m v\u1eefng ch\u1eafc trong l\u0129nh v\u1ef1c Ph\u1ea7n m\u1ec1m d\u01b0\u1edbi d\u1ea1ng d\u1ecbch v\u1ee5 (SaaS), m\u1ed9t minh ch\u1ee9ng cho ki\u1ebfn th\u1ee9c s\u00e2u r\u1ed9ng c\u1ee7a \u00f4ng v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt s\u1ed1.","sameAs":["https:\/\/www.linkedin.com\/in\/siim-tiigimagi\/"]},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/best-qr-code-sizes-for-business-cards\/#faq-question-b4a620c3e02d","position":1,"url":"https:\/\/pageloot.com\/blog\/best-qr-code-sizes-for-business-cards\/#faq-question-b4a620c3e02d","name":"K\u00edch th\u01b0\u1edbc nh\u1ecf nh\u1ea5t tuy\u1ec7t \u0111\u1ed1i cho m\u00e3 QR tr\u00ean danh thi\u1ebfp l\u00e0 bao nhi\u00eau?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The absolute minimum is 0.6 x 0.6 inches (1.5 x 1.5 cm). This size is only recommended for high-contrast designs with very little data, such as a simple website URL. For most use cases, staying at or above 0.8 inches (2 cm) ensures a much higher success rate for your contacts.","inLanguage":"vi"},"inLanguage":"vi"},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/best-qr-code-sizes-for-business-cards\/#faq-question-c1aa11d1a11b","position":2,"url":"https:\/\/pageloot.com\/blog\/best-qr-code-sizes-for-business-cards\/#faq-question-c1aa11d1a11b","name":"T\u00f4i c\u00f3 th\u1ec3 \u0111\u1eb7t logo c\u00f4ng ty c\u1ee7a m\u00ecnh v\u00e0o gi\u1eefa m\u1ed9t m\u00e3 QR nh\u1ecf kh\u00f4ng?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"You can, but it requires using Level H error correction to compensate for the covered data area. Because Level H makes the grid much denser, you should increase the overall size of the QR code to at least 1 x 1 inch to keep the individual modules large enough for a camera to focus on them.","inLanguage":"vi"},"inLanguage":"vi"},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/best-qr-code-sizes-for-business-cards\/#faq-question-83986a06265b","position":3,"url":"https:\/\/pageloot.com\/blog\/best-qr-code-sizes-for-business-cards\/#faq-question-83986a06265b","name":"T\u1ea1i sao m\u00e3 QR c\u1ee7a t\u00f4i kh\u00f4ng qu\u00e9t \u0111\u01b0\u1ee3c m\u1eb7c d\u00f9 k\u00edch th\u01b0\u1edbc \u0111\u00e3 \u0111\u00fang?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"If the size is correct, the issue is likely a lack of a u005cu0022quiet zoneu005cu0022 border, low color contrast, or poor print resolution. Ensure there is a clear margin of at least four modules around the code and that you used a high-resolution vector file rather than a screenshot or low-quality PNG. Successful networking depends on how easily people can connect with you in a digital-first world. By following these sizing guidelines and technical standards, you ensure that your business card serves as a flawless gateway to your professional presence. To create a durable, high-resolution code for your next print run, explore our professional business card QR code generator today.","inLanguage":"vi"},"inLanguage":"vi"}]}},"_links":{"self":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/42239","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/comments?post=42239"}],"version-history":[{"count":9,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/42239\/revisions"}],"predecessor-version":[{"id":52779,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/42239\/revisions\/52779"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/media\/50427"}],"wp:attachment":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/media?parent=42239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/categories?post=42239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/tags?post=42239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}