🐟 Sea Bass Weight Calculator
Estimate sea bass weight from length & girth measurements — European & Striped bass supported
| Length (in) | Length (cm) | Est. Weight (lb) | Est. Weight (kg) | Avg Girth (in) |
|---|---|---|---|---|
| 12 | 30.5 | 0.7 | 0.32 | 7 |
| 15 | 38.1 | 1.3 | 0.59 | 9 |
| 18 | 45.7 | 2.5 | 1.13 | 10 |
| 20 | 50.8 | 3.5 | 1.59 | 11 |
| 24 | 61.0 | 6.0 | 2.72 | 13 |
| 28 | 71.1 | 9.5 | 4.31 | 15 |
| 32 | 81.3 | 14.0 | 6.35 | 17 |
| 36 | 91.4 | 20.0 | 9.07 | 19 |
| 40 | 101.6 | 28.0 | 12.70 | 21 |
| 44 | 111.8 | 38.0 | 17.24 | 23 |
| 48 | 121.9 | 50.0 | 22.68 | 25 |
| Species | Avg Weight | Max Weight | Min Keeper | Formula Factor |
|---|---|---|---|---|
| Striped Bass | 2–20 lb | 81.9 lb | 28 in | L×G²/800 |
| European Sea Bass | 0.5–5 lb | 20.4 lb | 36 cm | L×G²/800 |
| Black Sea Bass | 0.5–2 lb | 9.8 lb | 12.5 in | L×G²/900 |
| Length (cm) | Length (in) | Est. Weight (kg) | Est. Weight (lb) | Avg Girth (cm) |
|---|---|---|---|---|
| 30 | 11.8 | 0.25 | 0.55 | 14 |
| 35 | 13.8 | 0.40 | 0.88 | 16 |
| 40 | 15.7 | 0.60 | 1.32 | 18 |
| 45 | 17.7 | 0.90 | 1.98 | 20 |
| 50 | 19.7 | 1.30 | 2.87 | 22 |
| 55 | 21.7 | 1.80 | 3.97 | 25 |
| 60 | 23.6 | 2.40 | 5.29 | 27 |
| 65 | 25.6 | 3.20 | 7.05 | 30 |
| 70 | 27.6 | 4.10 | 9.04 | 33 |
| 75 | 29.5 | 5.20 | 11.46 | 35 |
Sea bass appear in many different species, and their weight changes a lot according to the type. Some of them are only some centimetres, but the biggest reach even 2.7 metres and weigh almost 400 kilos. Among them is the enormous grouper that belongs to the same family as sea bass.
The enormous grouper can grow to two metres long and weigh 225 kilos.
Sea Bass Size and Weight
The great sea bass species from California ranks as the most heavy bony fish in that area. The record among them measured 7.4 feet and weighed 563.5 pounds. That fish is known also because of its long life.
They reach maturity in 11 or 12 years, when its weight is around 50 pounds.
The European sea bass species grows quite slowly and requires several years to reach full size. Adults weigh average 2.5 kilos, so around 5 pounds and 8 units. At most they are won metre and weigh 12 kilos, even so that happens rarely.
In sporting fishing records, a big sea bass sample was one metre and weighed 10 kilos. Commercially, fish of six kilos are already seen as especially big. Farm raised species even so do not reach such weight.
Black sea bass can pass 25 inches in length and weigh more than 8 pounds. Wild black sea bass averages around two pounds. Typical sea bass size is one foot long and 9 pounds heavy.
They can grow to two feet or more, and some reach 7.5 pounds. North species rarely pass 5 pounds, and the usual weight is only 1.5 pounds.
Fishers commonly care about the counting of weight from length. A chart linking length to weight is very helpful. For instance, sea bass of 40 cm weigh around one pound and 8 units, while one at 60 cm reaches almost 5 pounds.
At 74 cm, weight jumps to around 9 pounds and 2 units. Fish of 80 cm weighs average 11 pounds and 8 units. Even so two fish of same length can differ in weight according to their thickness.
One sample at 76 cm weighed 9 pounds and 2 units, but another at 74 cm reached 9 pounds and 14 units because of bigger body.
Measuring length commonly seems more reliable than guessing weight. Weight changes according to season and if the fish carries eggs. Length stays permanent.
There are even special measures for sea bass, that point toapproximate weight according to length, counted from the nose to the tip of the tail.
