Surfboard Volume Calculator: Litres for Your Weight
SURFBOARD VOLUME CALCULATOR
Enough float.
Not too much.
Find the right surfboard volume in litres for your weight and ability, adjusted for fitness, age, waves and wetsuit.
Training for paddle fitness? Swim pace and training zones in the pool.
Swimming pace calculatorBEHIND YOUR NUMBER
A little understanding
goes a long way.
What is the guild factor?
A multiplier of your weight that gives a sensible board volume for your level, from about 1.0 for beginners down to about 0.35 for experts. A 75 kg intermediate at 0.45 suits roughly 34 litres.
Volume (L) = weight (kg) × guild factor
Why does volume matter?
More volume floats you higher, so you paddle faster and catch waves more easily. Less volume makes a board easier to turn and duck-dive, but harder to paddle.
How accurate is this?
It gives a sensible starting point based on widely used formulas and sizing guides. Brands, conditions and personal preference vary, so treat it as a guide and check with a coach, fitter or specialist shop.