Trout Weight Calculator/Converter: CM's To KG's

Find out the weight of your trout caught by measuring it instead of weighing or killing the fish. Very accurate trout conversion table below, to calculate centimeters into kilograms.

Beautiful south african rainbow troutI thought I would share some information I found recently on a North American fly fishing site, which gauges and estimates the weight of a Trout from its measurements, similar to how the SASAA tables work in saltwater angling, I adapted it and converted it for use in South Africa, this table is generally more accurate for "wild" Rainbow Trout, but give or take a few 100 grams and this can be applied to stocked fish, and their weight is very similar to Brown Trout, generally at each length a Brown Trout will be 10 to 60 grams heavier. This conversion table should be used as a general guideline and not as an absolute accurate. For example, I have seen a 72cm Trout that only weighed 4kgs, and I have caught a 39cm fish that weighed slightly over 1kg. Hope it helps!

30cm - 350 grams
31cm - 400 grams
32cm - 450 grams
33cm - 500 grams
34cm - 550 grams
35cm - 600 grams
36cm - 650 grams
37cm - 700 grams
38cm - 750 grams
39cm - 800 grams
40cm - 850 grams
41cm - 900 grams
42cm - 1kg
43cm - 1.1kg
44cm - 1.15kg
45cm - 1.2kg
46cm - 1.3kg
47cm - 1.4kg
48cm - 1.5kg
49cm - 1.6kg
50cm - 1.7kg
51cm - 1.8kg
52cm - 1.9kg
53cm - 2kg
54cm - 2.15kg
55cm - 2.3kg
56cm - 2.4kg
57cm - 2.5kg
58cm - 2.65kg
59cm - 2.8kg
60cm - 2.95kg
61cm - 3.1kg
62cm - 3.25kg
63cm - 3.4kg
64cm - 3.55kg
65cm - 3.7kg
66cm - 3.85kg
67cm - 4kg