Fish Weight Calculator
Estimate fish weight from length and girth measurements using species-specific condition factors.
How to Use the Fish Weight Calculator
- Measure the total length of the fish from tip to tail.
- Measure the girth at the widest point.
- Select the fish species.
- Click Calculate to get the estimated weight.
Cas d'utilisation
- •Estimating catch weight for catch-and-release records.
- •Tournament fishing where live weigh-in is not possible.
- •Comparing fish condition between seasons.
- •Educational purposes for biology classes.
Formule
Weight (kg) = Length (cm) × Girth² (cm) × K / 100,000,000. K factors: trout 800, bass 1000, pike 900.
Questions fréquemment posées
How accurate is this calculator?
Results are estimates based on average body proportions. Actual weight may vary with season and fish condition.
How do I measure girth?
Measure the circumference at the widest point of the fish's body, just behind the pectoral fins.
Is it free?
Yes, all calculators on OhMyCalc are completely free.