Surfboard Volume Calculator

Find your ideal surfboard volume based on weight, skill level, and wave conditions.

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Surfboard volume — why litres matter more than length

For decades surfers chose boards by length alone. A 6'2" shortboard, a 7'6" funboard, a 9'0" longboard. But two boards of the same length can have wildly different volumes depending on width, thickness, and outline shape. Volume — measured in litres — is now the standard way to match a board to a surfer.

Volume determines buoyancy: how well the board floats you, how easily you can paddle, and how quickly you can catch waves. Get it wrong and you'll either struggle to catch anything (too little volume) or find the board sluggish and unresponsive (too much).

🦘 Fun fact: Australia has more than 10,000 beaches and an estimated 2.5 million surfers. The Gold Coast, Torquay, and Margaret River are considered three of the best surfing regions in the world — and Australians have won more world surf titles than any other nation.

Frequently Asked Questions

How do I calculate the right surfboard volume?

Surfboard volume is calculated primarily from your body weight multiplied by a ratio based on your skill level. Beginners typically need 0.60–0.70 times their body weight in litres, intermediates 0.40–0.50, advanced surfers 0.33–0.40, and pros 0.28–0.33. This base volume is then adjusted for wave conditions (small mushy waves need more volume, big waves need less), fitness level, and age. More volume means more paddle power and stability; less volume means more manoeuvrability.

What volume surfboard for a beginner?

A beginner should look for a surfboard with approximately 0.60 to 0.70 times their body weight in litres. For example, an 80kg beginner would want a board between 48 and 56 litres. This extra volume provides stability, makes paddling easier, and helps catch more waves — all critical when learning. Most beginners do best on a longboard (8–9ft) or a large foam board (soft-top) with plenty of width and thickness.

Does surfboard volume matter?

Yes — surfboard volume is one of the most important factors in choosing the right board. Volume (measured in litres) determines how much the board floats you, which directly affects paddle speed, wave-catching ability, stability, and manoeuvrability. Too little volume and you'll struggle to catch waves and tire quickly. Too much volume and the board will feel sluggish and hard to turn. The right volume depends on your weight, fitness, skill level, and the waves you typically surf.

What's the difference between a shortboard and a funboard?

A shortboard is typically 5'6" to 6'6" with low volume (22–32 litres), a pointed nose, and thin rails — designed for high-performance surfing in good waves. A funboard (or mid-length) is 6'6" to 8'0" with moderate volume (40–55 litres), a rounder nose, and more width — designed to be easy to paddle and catch waves while still allowing turns. Funboards are ideal for intermediate surfers or anyone who wants to have fun in average conditions without the difficulty of a shortboard.