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Chromosome Lengths
Purpose of this page
This web page, is just a list of the lengths of human chromosomes, which I find
useful when coding. The total lengths and percent of total values are for a diploid
genome (i.e. 46 chromosomes) with the percentage given to 2 decimal places.
| Chromosome | Length (bp) | Centromere (bp) | Percent of total Male | Percent of total Female |
|---|
| 1 | 247,249,719 | 124,200,000 | 8.31 | 8.18 |
| 2 | 242,951,149 | 93,400,000 | 8.17 | 8.04 |
| 3 | 199,501,827 | 91,700,000 | 6.71 | 8.60 |
| 4 | 191,273,063 | 50,900,000 | 6.43 | 6.33 |
| 5 | 180,857,866 | 47,700,000 | 6.08 | 5.98 |
| 6 | 170,899,992 | 60,500,000 | 5.74 | 5.65 |
| 7 | 158,821,424 | 58,900,000 | 5.34 | 5.25 |
| 8 | 146,274,826 | 45,200,000 | 4.92 | 4.84 |
| 9 | 140,273,252 | 50,600,000 | 4.72 | 4.64 |
| 10 | 135,374,737 | 40,300,000 | 4.55 | 4.48 |
| 11 | 134,452,384 | 52,900,000 | 4.52 | 4.45 |
| 12 | 132,349,534 | 35,400,000 | 4.45 | 4.38 |
| 13 | 114,142,980 | 16,000,000 | 3.84 | 3.78 |
| 14 | 106,368,585 | 15,600,000 | 3.58 | 3.52 |
| 15 | 100,338,915 | 17,000,000 | 3.37 | 3.32 |
| 16 | 88,827,254 | 38,200,000 | 2.99 | 2.94 |
| 17 | 78,774,742 | 22,200,000 | 2.65 | 2.61 |
| 18 | 76,117,153 | 16,100,000 | 2.56 | 2.52 |
| 19 | 63,811,651 | 28,500,000 | 2.14 | 2.11 |
| 20 | 62,435,964 | 27,100,000 | 2.10 | 2.07 |
| 21 | 46,944,323 | 12,300,000 | 1.58 | 1.55 |
| 22 | 49,691,432 | 11,800,000 | 1.67 | 1.64 |
| X | 154,913,754 | 59,400,000 | 2.60 | 5.13 |
| Y | 57,772,954 | | 0.97 | 0 |
| Total Male | 5,948,152,252 | | 100 | - |
| Total Female | 6,045,293,052 | | - | 100 |
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