Superbrand Volume Calculator
Find your 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 and weight.
1. Choose your body weight by sliding the bar on the left side of the graph.
2. Next, slide the right side of the graph to your “GF” number (see below for suggestions) and your suggested volume number will be on the bottom right side of the graph.
What GF number am I?
-Advanced, extremely fit, high performance surfers: .34GF to .36GF.
-Typical fitness with average, to above average skills: .36gf to .38gf
-Domesticated, lower fitness, desk jobs, and weekend warrior surfers: .38gf to .42gf
-Novice surfers, or surfers with extremely small surf, thick wetsuits or adverse conditions: .40gf to .50gf (depending on age, ability and motivation)
If you’re surfing in warm water and good waves, the lower end of the scale is recommended. If you’re surfing in poor conditions, looking for help in crowds, or wearing thick wetsuits, lean towards the higher end of the range that you fall into.
More about GF (Guild Factor) GF measures the ratio between the surfer’s body weight and the volume (in cubic liters) of a surfboard. The GF number is the percentage of volume (floatation) to body weight. If a surfer knows his weight, he can scroll up and down the scale to find his recommended volume (keeping in mind skill and fitness). If a surfer knows the volume of his favorite board, or a board that feels too buoyant or not buoyant enough, he can use the chart to guide him/her in a better direction. As anything, this is simply another tool to make things easier when choosing a surfboard. Its not a means to an end, and nothing is set in stone. Ultimately, the surfer needs to use what feels best for them.
SURFBOARD VOLUME CALCULATOR: