Foam deck and rails, forgiving and safe in crowds and whitewater. For learning, kids and summer slop; volume runs high by design. 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.
| Weight | 1 Beginner | 2 Beg. / int. | 3 Intermediate | 4 Advanced | 5 Expert |
|---|---|---|---|---|---|
| 45 kg · 99 lb | 49.6 | 41.3 | 34.5 | 28.8 | 27.3 |
| 50 kg · 110 lb | 55.1 | 45.8 | 38.4 | 32.0 | 30.3 |
| 55 kg · 121 lb | 60.6 | 50.4 | 42.2 | 35.2 | 33.4 |
| 60 kg · 132 lb | 66.1 | 55.0 | 46.0 | 38.4 | 36.4 |
| 65 kg · 143 lb | 71.6 | 59.6 | 49.9 | 41.6 | 39.4 |
| 70 kg · 154 lb | 77.1 | 64.2 | 53.7 | 44.8 | 42.5 |
| 75 kg · 165 lb | 82.6 | 68.8 | 57.5 | 48.0 | 45.5 |
| 80 kg · 176 lb | 88.1 | 73.4 | 61.4 | 51.2 | 48.6 |
| 85 kg · 187 lb | 93.6 | 77.9 | 65.2 | 54.4 | 51.6 |
| 90 kg · 198 lb | 99.1 | 82.5 | 69.0 | 57.6 | 54.6 |
| 95 kg · 209 lb | 104.7 | 87.1 | 72.9 | 60.8 | 57.7 |
| 100 kg · 220 lb | 110.2 | 91.7 | 76.7 | 64.0 | 60.7 |
| 105 kg · 231 lb | 115.7 | 96.3 | 80.5 | 67.2 | 63.7 |
| 110 kg · 243 lb | 121.2 | 100.9 | 84.4 | 70.3 | 66.8 |
| 115 kg · 254 lb | 126.7 | 105.5 | 88.2 | 73.5 | 69.8 |
| 120 kg · 265 lb | 132.2 | 110.0 | 92.0 | 76.7 | 72.8 |
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