Find the ideal volume for your next superbrand surfboard. our interactive surfboard volume calculator will help determine the best volume (in liters) by factoring your fitness level, skill level and weight. fun series. alternative shapes designed to maximize fun in small waves. ride with a little extra volume.. Volume to weight ratios words by harry knight & film by erik derman (update sep 10th, 2017: episode 50 of the surf simply podcast features a more in depth and up to date discussion about surfboard volume to weight ratios.. All prices are in usd