The following table lists the number of error correction code words that you are required to generate for each version and error correction level of QR code. These values can be used to determine how many data bytes and error correction bytes are required for a given Reed-Solomon block.
| Version and EC Level | Total Number of Data Codewords for this Version and EC Level | EC Codewords Per Block | Number of Blocks in Group 1 | Number of Data Codewords in Each of Group 1's Blocks | Number of Blocks in Group 2 | Number of Data Codewords in Each of Group 2's Blocks | Total Data Codewords |
|---|---|---|---|---|---|---|---|
| 1-L | 19 | 7 | 1 | 19 | (19*1) = 19 | ||
| 1-M | 16 | 10 | 1 | 16 | (16*1) = 16 | ||
| 1-Q | 13 | 13 | 1 | 13 | (13*1) = 13 | ||
| 1-H | 9 | 17 | 1 | 9 | (9*1) = 9 | ||
| 2-L | 34 | 10 | 1 | 34 | (34*1) = 34 | ||
| 2-M | 28 | 16 | 1 | 28 | (28*1) = 28 | ||
| 2-Q | 22 | 22 | 1 | 22 | (22*1) = 22 | ||
| 2-H | 16 | 28 | 1 | 16 | (16*1) = 16 | ||
| 3-L | 55 | 15 | 1 | 55 | (55*1) = 55 | ||
| 3-M | 44 | 26 | 1 | 44 | (44*1) = 44 | ||
| 3-Q | 34 | 18 | 2 | 17 | (17*2) = 34 | ||
| 3-H | 26 | 22 | 2 | 13 | (13*2) = 26 | ||
| 4-L | 80 | 20 | 1 | 80 | (80*1) = 80 | ||
| 4-M | 64 | 18 | 2 | 32 | (32*2) = 64 | ||
| 4-Q | 48 | 26 | 2 | 24 | (24*2) = 48 | ||
| 4-H | 36 | 16 | 4 | 9 | (9*4) = 36 | ||
| 5-L | 108 | 26 | 1 | 108 | (108*1) = 108 | ||
| 5-M | 86 | 24 | 2 | 43 | (43*2) = 86 | ||
| 5-Q | 62 | 18 | 2 | 15 | 2 | 16 | (15*2) + (16*2) = 62 |
| 5-H | 46 | 22 | 2 | 11 | 2 | 12 | (11*2) + (12*2) = 46 |
| 6-L | 136 | 18 | 2 | 68 | (68*2) = 136 | ||
| 6-M | 108 | 16 | 4 | 27 | (27*4) = 108 | ||
| 6-Q | 76 | 24 | 4 | 19 | (19*4) = 76 | ||
| 6-H | 60 | 28 | 4 | 15 | (15*4) = 60 | ||
| 7-L | 156 | 20 | 2 | 78 | (78*2) = 156 | ||
| 7-M | 124 | 18 | 4 | 31 | (31*4) = 124 | ||
| 7-Q | 88 | 18 | 2 | 14 | 4 | 15 | (14*2) + (15*4) = 88 |
| 7-H | 66 | 26 | 4 | 13 | 1 | 14 | (13*4) + (14*1) = 66 |
| 8-L | 194 | 24 | 2 | 97 | (97*2) = 194 | ||
| 8-M | 154 | 22 | 2 | 38 | 2 | 39 | (38*2) + (39*2) = 154 |
| 8-Q | 110 | 22 | 4 | 18 | 2 | 19 | (18*4) + (19*2) = 110 |
| 8-H | 86 | 26 | 4 | 14 | 2 | 15 | (14*4) + (15*2) = 86 |
| 9-L | 232 | 30 | 2 | 116 | (116*2) = 232 | ||
| 9-M | 182 | 22 | 3 | 36 | 2 | 37 | (36*3) + (37*2) = 182 |
| 9-Q | 132 | 20 | 4 | 16 | 4 | 17 | (16*4) + (17*4) = 132 |
| 9-H | 100 | 24 | 4 | 12 | 4 | 13 | (12*4) + (13*4) = 100 |
| 10-L | 274 | 18 | 2 | 68 | 2 | 69 | (68*2) + (69*2) = 274 |
| 10-M | 216 | 26 | 4 | 43 | 1 | 44 | (43*4) + (44*1) = 216 |
| 10-Q | 154 | 24 | 6 | 19 | 2 | 20 | (19*6) + (20*2) = 154 |
| 10-H | 122 | 28 | 6 | 15 | 2 | 16 | (15*6) + (16*2) = 122 |
| 11-L | 324 | 20 | 4 | 81 | (81*4) = 324 | ||
| 11-M | 254 | 30 | 1 | 50 | 4 | 51 | (50*1) + (51*4) = 254 |
| 11-Q | 180 | 28 | 4 | 22 | 4 | 23 | (22*4) + (23*4) = 180 |
| 11-H | 140 | 24 | 3 | 12 | 8 | 13 | (12*3) + (13*8) = 140 |
| 12-L | 370 | 24 | 2 | 92 | 2 | 93 | (92*2) + (93*2) = 370 |
| 12-M | 290 | 22 | 6 | 36 | 2 | 37 | (36*6) + (37*2) = 290 |
| 12-Q | 206 | 26 | 4 | 20 | 6 | 21 | (20*4) + (21*6) = 206 |
| 12-H | 158 | 28 | 7 | 14 | 4 | 15 | (14*7) + (15*4) = 158 |
| 13-L | 428 | 26 | 4 | 107 | (107*4) = 428 | ||
| 13-M | 334 | 22 | 8 | 37 | 1 | 38 | (37*8) + (38*1) = 334 |
| 13-Q | 244 | 24 | 8 | 20 | 4 | 21 | (20*8) + (21*4) = 244 |
| 13-H | 180 | 22 | 12 | 11 | 4 | 12 | (11*12) + (12*4) = 180 |
| 14-L | 461 | 30 | 3 | 115 | 1 | 116 | (115*3) + (116*1) = 461 |
| 14-M | 365 | 24 | 4 | 40 | 5 | 41 | (40*4) + (41*5) = 365 |
| 14-Q | 261 | 20 | 11 | 16 | 5 | 17 | (16*11) + (17*5) = 261 |
| 14-H | 197 | 24 | 11 | 12 | 5 | 13 | (12*11) + (13*5) = 197 |
| 15-L | 523 | 22 | 5 | 87 | 1 | 88 | (87*5) + (88*1) = 523 |
| 15-M | 415 | 24 | 5 | 41 | 5 | 42 | (41*5) + (42*5) = 415 |
| 15-Q | 295 | 30 | 5 | 24 | 7 | 25 | (24*5) + (25*7) = 295 |
| 15-H | 223 | 24 | 11 | 12 | 7 | 13 | (12*11) + (13*7) = 223 |
| 16-L | 589 | 24 | 5 | 98 | 1 | 99 | (98*5) + (99*1) = 589 |
| 16-M | 453 | 28 | 7 | 45 | 3 | 46 | (45*7) + (46*3) = 453 |
| 16-Q | 325 | 24 | 15 | 19 | 2 | 20 | (19*15) + (20*2) = 325 |
| 16-H | 253 | 30 | 3 | 15 | 13 | 16 | (15*3) + (16*13) = 253 |
| 17-L | 647 | 28 | 1 | 107 | 5 | 108 | (107*1) + (108*5) = 647 |
| 17-M | 507 | 28 | 10 | 46 | 1 | 47 | (46*10) + (47*1) = 507 |
| 17-Q | 367 | 28 | 1 | 22 | 15 | 23 | (22*1) + (23*15) = 367 |
| 17-H | 283 | 28 | 2 | 14 | 17 | 15 | (14*2) + (15*17) = 283 |
| 18-L | 721 | 30 | 5 | 120 | 1 | 121 | (120*5) + (121*1) = 721 |
| 18-M | 563 | 26 | 9 | 43 | 4 | 44 | (43*9) + (44*4) = 563 |
| 18-Q | 397 | 28 | 17 | 22 | 1 | 23 | (22*17) + (23*1) = 397 |
| 18-H | 313 | 28 | 2 | 14 | 19 | 15 | (14*2) + (15*19) = 313 |
| 19-L | 795 | 28 | 3 | 113 | 4 | 114 | (113*3) + (114*4) = 795 |
| 19-M | 627 | 26 | 3 | 44 | 11 | 45 | (44*3) + (45*11) = 627 |
| 19-Q | 445 | 26 | 17 | 21 | 4 | 22 | (21*17) + (22*4) = 445 |
| 19-H | 341 | 26 | 9 | 13 | 16 | 14 | (13*9) + (14*16) = 341 |
| 20-L | 861 | 28 | 3 | 107 | 5 | 108 | (107*3) + (108*5) = 861 |
| 20-M | 669 | 26 | 3 | 41 | 13 | 42 | (41*3) + (42*13) = 669 |
| 20-Q | 485 | 30 | 15 | 24 | 5 | 25 | (24*15) + (25*5) = 485 |
| 20-H | 385 | 28 | 15 | 15 | 10 | 16 | (15*15) + (16*10) = 385 |
| 21-L | 932 | 28 | 4 | 116 | 4 | 117 | (116*4) + (117*4) = 932 |
| 21-M | 714 | 26 | 17 | 42 | (42*17) = 714 | ||
| 21-Q | 512 | 28 | 17 | 22 | 6 | 23 | (22*17) + (23*6) = 512 |
| 21-H | 406 | 30 | 19 | 16 | 6 | 17 | (16*19) + (17*6) = 406 |
| 22-L | 1006 | 28 | 2 | 111 | 7 | 112 | (111*2) + (112*7) = 1006 |
| 22-M | 782 | 28 | 17 | 46 | (46*17) = 782 | ||
| 22-Q | 568 | 30 | 7 | 24 | 16 | 25 | (24*7) + (25*16) = 568 |
| 22-H | 442 | 24 | 34 | 13 | (13*34) = 442 | ||
| 23-L | 1094 | 30 | 4 | 121 | 5 | 122 | (121*4) + (122*5) = 1094 |
| 23-M | 860 | 28 | 4 | 47 | 14 | 48 | (47*4) + (48*14) = 860 |
| 23-Q | 614 | 30 | 11 | 24 | 14 | 25 | (24*11) + (25*14) = 614 |
| 23-H | 464 | 30 | 16 | 15 | 14 | 16 | (15*16) + (16*14) = 464 |
| 24-L | 1174 | 30 | 6 | 117 | 4 | 118 | (117*6) + (118*4) = 1174 |
| 24-M | 914 | 28 | 6 | 45 | 14 | 46 | (45*6) + (46*14) = 914 |
| 24-Q | 664 | 30 | 11 | 24 | 16 | 25 | (24*11) + (25*16) = 664 |
| 24-H | 514 | 30 | 30 | 16 | 2 | 17 | (16*30) + (17*2) = 514 |
| 25-L | 1276 | 26 | 8 | 106 | 4 | 107 | (106*8) + (107*4) = 1276 |
| 25-M | 1000 | 28 | 8 | 47 | 13 | 48 | (47*8) + (48*13) = 1000 |
| 25-Q | 718 | 30 | 7 | 24 | 22 | 25 | (24*7) + (25*22) = 718 |
| 25-H | 538 | 30 | 22 | 15 | 13 | 16 | (15*22) + (16*13) = 538 |
| 26-L | 1370 | 28 | 10 | 114 | 2 | 115 | (114*10) + (115*2) = 1370 |
| 26-M | 1062 | 28 | 19 | 46 | 4 | 47 | (46*19) + (47*4) = 1062 |
| 26-Q | 754 | 28 | 28 | 22 | 6 | 23 | (22*28) + (23*6) = 754 |
| 26-H | 596 | 30 | 33 | 16 | 4 | 17 | (16*33) + (17*4) = 596 |
| 27-L | 1468 | 30 | 8 | 122 | 4 | 123 | (122*8) + (123*4) = 1468 |
| 27-M | 1128 | 28 | 22 | 45 | 3 | 46 | (45*22) + (46*3) = 1128 |
| 27-Q | 808 | 30 | 8 | 23 | 26 | 24 | (23*8) + (24*26) = 808 |
| 27-H | 628 | 30 | 12 | 15 | 28 | 16 | (15*12) + (16*28) = 628 |
| 28-L | 1531 | 30 | 3 | 117 | 10 | 118 | (117*3) + (118*10) = 1531 |
| 28-M | 1193 | 28 | 3 | 45 | 23 | 46 | (45*3) + (46*23) = 1193 |
| 28-Q | 871 | 30 | 4 | 24 | 31 | 25 | (24*4) + (25*31) = 871 |
| 28-H | 661 | 30 | 11 | 15 | 31 | 16 | (15*11) + (16*31) = 661 |
| 29-L | 1631 | 30 | 7 | 116 | 7 | 117 | (116*7) + (117*7) = 1631 |
| 29-M | 1267 | 28 | 21 | 45 | 7 | 46 | (45*21) + (46*7) = 1267 |
| 29-Q | 911 | 30 | 1 | 23 | 37 | 24 | (23*1) + (24*37) = 911 |
| 29-H | 701 | 30 | 19 | 15 | 26 | 16 | (15*19) + (16*26) = 701 |
| 30-L | 1735 | 30 | 5 | 115 | 10 | 116 | (115*5) + (116*10) = 1735 |
| 30-M | 1373 | 28 | 19 | 47 | 10 | 48 | (47*19) + (48*10) = 1373 |
| 30-Q | 985 | 30 | 15 | 24 | 25 | 25 | (24*15) + (25*25) = 985 |
| 30-H | 745 | 30 | 23 | 15 | 25 | 16 | (15*23) + (16*25) = 745 |
| 31-L | 1843 | 30 | 13 | 115 | 3 | 116 | (115*13) + (116*3) = 1843 |
| 31-M | 1455 | 28 | 2 | 46 | 29 | 47 | (46*2) + (47*29) = 1455 |
| 31-Q | 1033 | 30 | 42 | 24 | 1 | 25 | (24*42) + (25*1) = 1033 |
| 31-H | 793 | 30 | 23 | 15 | 28 | 16 | (15*23) + (16*28) = 793 |
| 32-L | 1955 | 30 | 17 | 115 | (115*17) = 1955 | ||
| 32-M | 1541 | 28 | 10 | 46 | 23 | 47 | (46*10) + (47*23) = 1541 |
| 32-Q | 1115 | 30 | 10 | 24 | 35 | 25 | (24*10) + (25*35) = 1115 |
| 32-H | 845 | 30 | 19 | 15 | 35 | 16 | (15*19) + (16*35) = 845 |
| 33-L | 2071 | 30 | 17 | 115 | 1 | 116 | (115*17) + (116*1) = 2071 |
| 33-M | 1631 | 28 | 14 | 46 | 21 | 47 | (46*14) + (47*21) = 1631 |
| 33-Q | 1171 | 30 | 29 | 24 | 19 | 25 | (24*29) + (25*19) = 1171 |
| 33-H | 901 | 30 | 11 | 15 | 46 | 16 | (15*11) + (16*46) = 901 |
| 34-L | 2191 | 30 | 13 | 115 | 6 | 116 | (115*13) + (116*6) = 2191 |
| 34-M | 1725 | 28 | 14 | 46 | 23 | 47 | (46*14) + (47*23) = 1725 |
| 34-Q | 1231 | 30 | 44 | 24 | 7 | 25 | (24*44) + (25*7) = 1231 |
| 34-H | 961 | 30 | 59 | 16 | 1 | 17 | (16*59) + (17*1) = 961 |
| 35-L | 2306 | 30 | 12 | 121 | 7 | 122 | (121*12) + (122*7) = 2306 |
| 35-M | 1812 | 28 | 12 | 47 | 26 | 48 | (47*12) + (48*26) = 1812 |
| 35-Q | 1286 | 30 | 39 | 24 | 14 | 25 | (24*39) + (25*14) = 1286 |
| 35-H | 986 | 30 | 22 | 15 | 41 | 16 | (15*22) + (16*41) = 986 |
| 36-L | 2434 | 30 | 6 | 121 | 14 | 122 | (121*6) + (122*14) = 2434 |
| 36-M | 1914 | 28 | 6 | 47 | 34 | 48 | (47*6) + (48*34) = 1914 |
| 36-Q | 1354 | 30 | 46 | 24 | 10 | 25 | (24*46) + (25*10) = 1354 |
| 36-H | 1054 | 30 | 2 | 15 | 64 | 16 | (15*2) + (16*64) = 1054 |
| 37-L | 2566 | 30 | 17 | 122 | 4 | 123 | (122*17) + (123*4) = 2566 |
| 37-M | 1992 | 28 | 29 | 46 | 14 | 47 | (46*29) + (47*14) = 1992 |
| 37-Q | 1426 | 30 | 49 | 24 | 10 | 25 | (24*49) + (25*10) = 1426 |
| 37-H | 1096 | 30 | 24 | 15 | 46 | 16 | (15*24) + (16*46) = 1096 |
| 38-L | 2702 | 30 | 4 | 122 | 18 | 123 | (122*4) + (123*18) = 2702 |
| 38-M | 2102 | 28 | 13 | 46 | 32 | 47 | (46*13) + (47*32) = 2102 |
| 38-Q | 1502 | 30 | 48 | 24 | 14 | 25 | (24*48) + (25*14) = 1502 |
| 38-H | 1142 | 30 | 42 | 15 | 32 | 16 | (15*42) + (16*32) = 1142 |
| 39-L | 2812 | 30 | 20 | 117 | 4 | 118 | (117*20) + (118*4) = 2812 |
| 39-M | 2216 | 28 | 40 | 47 | 7 | 48 | (47*40) + (48*7) = 2216 |
| 39-Q | 1582 | 30 | 43 | 24 | 22 | 25 | (24*43) + (25*22) = 1582 |
| 39-H | 1222 | 30 | 10 | 15 | 67 | 16 | (15*10) + (16*67) = 1222 |
| 40-L | 2956 | 30 | 19 | 118 | 6 | 119 | (118*19) + (119*6) = 2956 |
| 40-M | 2334 | 28 | 18 | 47 | 31 | 48 | (47*18) + (48*31) = 2334 |
| 40-Q | 1666 | 30 | 34 | 24 | 34 | 25 | (24*34) + (25*34) = 1666 |
| 40-H | 1276 | 30 | 20 | 15 | 61 | 16 | (15*20) + (16*61) = 1276 |