At 60 kg an intermediate shortboarder sits around 29 liters, a fish about 32, a midlength about 40 and a longboard about 50. Volume is the number every brand now prints on its boards: the liters of foam, which set how easily a board paddles and floats. These tables come from SurfCalc's own model, fitted to the published guides of major brands, for an average adult: 30 to 39, average fitness, surfing weekly in average waves. The calculator adjusts for your age, fitness, how often you surf, wave power and size, wetsuit and construction, and gives a ±5 % range to shop with.
| Board type | 1 Beginner | 2 Beg. / int. | 3 Intermediate | 4 Advanced | 5 Expert |
|---|---|---|---|---|---|
| Performance shortboard | 44.1 | 35.5 | 28.8 | 23.3 | 21.4 |
| Fish / hybrid / groveler | 46.3 | 38.0 | 31.6 | 26.0 | 24.0 |
| Midlength / funboard | 55.1 | 46.9 | 40.3 | 36.0 | 34.3 |
| Longboard | 63.9 | 55.0 | 50.3 | 46.5 | 47.1 |
| Soft-top | 66.1 | 55.0 | 46.0 | 38.4 | 36.4 |