⚖️ weight calculator
Caspian roach weight by length
Estimate the weight of Caspian roach on the water. Enter length from snout to tail tip and get the weight via W = a·L^b with this species' coefficients.
—
Weight-by-length table
| Length | Approx. weight |
|---|---|
| 15 cm | 48 g |
| 20 cm | 116 g |
| 25 cm | 229 g |
| 30 cm | 400 g |
| 35 cm | 640 g |
Estimate is averaged: real weight varies with condition, season and sex (±10–15%).