🐟 White Sturgeon Weight Calculator
Estimate white sturgeon weight from length & girth — supports imperial & metric units
| Length (in) | Length (cm) | Est. Weight (lb) — Avg Girth | Est. Weight (kg) | Size Class |
|---|---|---|---|---|
| 24 | 61 | 4 | 1.8 | Juvenile |
| 30 | 76 | 8 | 3.6 | Juvenile |
| 36 | 91 | 13 | 5.9 | Sub-Legal |
| 40 | 102 | 19 | 8.6 | Legal |
| 48 | 122 | 30 | 13.6 | Legal |
| 52 | 132 | 40 | 18.1 | Legal |
| 60 | 152 | 60 | 27.2 | Legal Max |
| 66 | 168 | 82 | 37.2 | Over-Slot |
| 72 | 183 | 108 | 49.0 | Over-Slot |
| 84 | 213 | 172 | 78.0 | Trophy |
| 96 | 244 | 260 | 117.9 | Record Class |
| 120 | 305 | 510 | 231.3 | Legendary |
| Body Condition | Girth:Length Ratio | Condition Factor K | Typical Context |
|---|---|---|---|
| Lean / Post-Spawn | 0.42–0.44 | 0.88–0.92 | Spring spawning run |
| Average Wild | 0.47–0.50 | 0.95–1.05 | Typical river/bay fish |
| Robust / Pre-Spawn | 0.51–0.54 | 1.06–1.15 | Delta feeding fish |
| Excellent (Aquaculture) | 0.55–0.60 | 1.16–1.30 | Farm-raised specimens |
| Length (in) | Girth²xL/800 (lb) | Girard Formula (lb) | Idaho Formula (lb) | Avg Estimate (lb) |
|---|---|---|---|---|
| 36 | 12–14 | 11 | 12 | 12 |
| 48 | 27–32 | 26 | 28 | 28 |
| 60 | 54–64 | 55 | 58 | 58 |
| 72 | 97–116 | 102 | 108 | 106 |
| 84 | 160–192 | 170 | 179 | 175 |
| 96 | 243–292 | 261 | 275 | 268 |
The sturgeon holds a strong position between the biggest freshwater fishes of the world, and for good reason. Adult sturgeon usually reaches between 7 and 12 feet in length and weigh around 400 to 800 pounds. Even so those numbers range a lot according to the species that one talks about.
Some species barely pass some pounds, while others, as the beluga, can reach almost 3500 pounds or even more.
How Big Do Sturgeon Get?
The beluga sturgeon? It is the heaviest member of the whole group. The biggest beluga in history was female that fishermen from the Volga Delta caught in 1827.
It measured around 7.2 metres in length and weighed 1571 kilos. Some sources even mention a record of 23 feet and almost 2 tons. What makes them like this remarkable: belugas are endless growers, so they simply keep growing without stopping.
Their bodies grow as much as food and space allows. Even so today the most many caught belugas are much more small, usually between 4 feet 8 inches and 10 feet 9 inches. About Weight, they range from 42 to 582 pounds, with females on avreage 20 percent heavier than males.
Male belugas even so still reach impressive size, around 6.3 metres long and weighing between 1000 and 1300 kilos. One male, that keeps the record for beluga from 1993, weighed only 224 pounds. That shows a big difference compared to the old historic samples.
The kaluga sturgeon also deserves attention as another heavy giant in the family. It can reach around 18.5 feet and weigh more then 2200 pounds. Others, as the atlantic sturgeon, grow to 14 or 15 feet and pass 800 pounds.
What truly surprises? They can jump nine feet straight from the water, quite impressive for such a heavy creature.
The lake sturgeon is a bit more modest, yet not small. The biggest samples reach 7 feet, weigh 200 to 300 pounds and can live more than 150 years. The most many adults range between 4 and 6 feet with Weight of 30 to 80 pounds.
In Minnesota, lake sturgeon commonly passes 100 pounds, and in the Rainy River one logged almost 100 000 of them, that measured 40 inches or more. In New York, mature adults average between 3 and 5 feet and weigh 10 to 80 pounds, although some reach 7 feet and even 300 pounds. The lake sturgeon is the biggest native fish of the Great Lakes and usually does not pass 200 pounds.
The Weight charts of White Sturgeon show an interesting picture. A 9-foot sample can weigh 550 to 600 pounds and be around 80 years old. At 10 feet it passes 800 pounds.
For an 11-foot fish that reaches 1000 pounds. One sample had 58 inches around the middle andone estimated it above 1000 pounds according to length-Weight charts.
