FishWeights is an online fish weight calculator that allows anglers to estimate the weight of their catch from a measurement. Weights are calculated with parameters supplied by local and international fisheries scientists. Each calculation is species specific, meaning that the weights are not generic estimations, but as close to perfect as possible based on current data. It also means that only one measurement is required, facilitating a quick release.
Select the species

Select the length of your catch in cm


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