Estimated Koi Length Table
| Months | Inches | Years | Cm |
| 0 | 0.3 | 0.0 | 0.7 |
| 1 | 1.1 | 0.1 | 2.9 |
| 2 | 2.0 | 0.2 | 5.0 |
| 3 | 2.8 | 0.3 | 7.1 |
| 4 | 3.6 | 0.3 | 9.1 |
| 5 | 4.4 | 0.4 | 11.1 |
| 6 | 5.1 | 0.5 | 13.0 |
| 7 | 5.8 | 0.6 | 14.8 |
| 8 | 6.5 | 0.7 | 16.6 |
| 9 | 7.2 | 0.8 | 18.4 |
| 10 | 7.9 | 0.8 | 20.1 |
| 11 | 8.6 | 0.9 | 21.7 |
| 12 | 9.2 | 1.0 | 23.3 |
| 13 | 9.8 | 1.1 | 24.9 |
| 14 | 10.4 | 1.2 | 26.4 |
| 15 | 11.0 | 1.3 | 27.9 |
| 16 | 11.5 | 1.3 | 29.3 |
| 17 | 12.1 | 1.4 | 30.7 |
| 18 | 12.6 | 1.5 | 32.1 |
| 19 | 13.2 | 1.6 | 33.4 |
| 20 | 13.7 | 1.7 | 34.7 |
| 21 | 14.2 | 1.8 | 36.0 |
| 22 | 14.6 | 1.8 | 37.2 |
| 23 | 15.1 | 1.9 | 38.4 |
| 24 | 15.6 | 2.0 | 39.5 |
| 25 | 16.0 | 2.1 | 40.6 |
| 26 | 16.4 | 2.2 | 41.7 |
| 27 | 16.8 | 2.3 | 42.8 |
| 28 | 17.2 | 2.3 | 43.8 |
| 29 | 17.6 | 2.4 | 44.8 |
| 30 | 18.0 | 2.5 | 45.8 |
| 31 | 18.4 | 2.6 | 46.7 |
| 32 | 18.8 | 2.7 | 47.6 |
| 33 | 19.1 | 2.8 | 48.5 |
| 34 | 19.4 | 2.8 | 49.4 |
| 35 | 19.8 | 2.9 | 50.2 |
| 36 | 20.1 | 3.0 | 51.1 |
| 37 | 20.4 | 3.1 | 51.9 |
| 38 | 20.7 | 3.2 | 52.6 |
| 39 | 21.0 | 3.3 | 53.4 |
| 40 | 21.3 | 3.3 | 54.1 |
| 41 | 21.6 | 3.4 | 54.8 |
| 42 | 21.9 | 3.5 | 55.5 |
| 43 | 22.1 | 3.6 | 56.2 |
| 44 | 22.4 | 3.7 | 56.9 |
| 45 | 22.6 | 3.8 | 57.5 |
| 46 | 22.9 | 3.8 | 58.1 |
| 47 | 23.1 | 3.9 | 58.7 |
| 48 | 23.4 | 4.0 | 59.3 |
| 49 | 23.6 | 4.1 | 59.9 |
| 50 | 23.8 | 4.2 | 60.4 |
| 51 | 24.0 | 4.3 | 61.0 |
| 52 | 24.2 | 4.3 | 61.5 |
| 53 | 24.4 | 4.4 | 62.0 |
| 54 | 24.6 | 4.5 | 62.5 |
| 55 | 24.8 | 4.6 | 63.0 |
| 56 | 25.0 | 4.7 | 63.5 |
| 57 | 25.2 | 4.8 | 63.9 |
| 58 | 25.3 | 4.8 | 64.4 |
| 59 | 25.5 | 4.9 | 64.8 |
| 60 | 25.7 | 5.0 | 65.2 |
| 61 | 25.8 | 5.1 | 65.6 |
| 62 | 26.0 | 5.2 | 66.0 |
| 63 | 26.1 | 5.3 | 66.4 |
| 64 | 26.3 | 5.3 | 66.8 |
| 65 | 26.4 | 5.4 | 67.2 |
| 66 | 26.6 | 5.5 | 67.5 |
| 67 | 26.7 | 5.6 | 67.9 |
| 68 | 26.8 | 5.7 | 68.2 |
| 69 | 27.0 | 5.8 | 68.5 |
| 70 | 27.1 | 5.8 | 68.8 |
| 71 | 27.2 | 5.9 | 69.1 |
| 72 | 27.3 | 6.0 | 69.4 |
| 73 | 27.5 | 6.1 | 69.7 |
| 74 | 27.6 | 6.2 | 70.0 |
| 75 | 27.7 | 6.3 | 70.3 |
| 76 | 27.8 | 6.3 | 70.6 |
| 77 | 27.9 | 6.4 | 70.8 |
| 78 | 28.0 | 6.5 | 71.1 |
| 79 | 28.1 | 6.6 | 71.3 |
| 80 | 28.2 | 6.7 | 71.6 |
| 81 | 28.3 | 6.8 | 71.8 |
| 82 | 28.4 | 6.8 | 72.0 |
| 83 | 28.4 | 6.9 | 72.2 |
| 84 | 28.5 | 7.0 | 72.5 |
| 85 | 28.6 | 7.1 | 72.7 |
| 86 | 28.7 | 7.2 | 72.9 |
| 87 | 28.8 | 7.3 | 73.1 |
| 88 | 28.8 | 7.3 | 73.3 |
| 89 | 28.9 | 7.4 | 73.4 |
| 90 | 29.0 | 7.5 | 73.6 |
| 91 | 29.1 | 7.6 | 73.8 |
| 92 | 29.1 | 7.7 | 74.0 |
| 93 | 29.2 | 7.8 | 74.1 |
| 94 | 29.3 | 7.8 | 74.3 |
| 95 | 29.3 | 7.9 | 74.5 |
| 96 | 29.4 | 8.0 | 74.6 |
| Months | Inches | Years | Cm |
The Koi Length Table is based on Ludwig von Bertalanffy Equation above
Koi Weight
Use formula below to calculate estimated Koi Weight
Koi Weight = (Total Inches / 11.667)^3
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