Paddleboard & Paddle Size Calculator
Board volume, length, width and paddle length for your weight and what you actually want to do on the water.
Weight means you plus anything you carry — a dog, a cooler, a child, camping gear. Volume has to float all of it and still leave enough spare to be stable.
By discipline
| Use | Volume × weight (kg) | Length | Width |
|---|---|---|---|
| All-around and flat water | 1.5 – 2 | 10'–11'6" | 32–34" wide |
| Touring and distance | 1.3 – 1.7 | 12'6" | 30–32" wide |
| Racing | 0.9 – 1.2 | 14' | 24–28" wide |
| Surf and waves | 0.8 – 1.1 | 8'–10' | 28–31" wide |
Width is the stability dial
Volume decides whether the board floats you; width decides whether you can stand on it. Every inch you take off makes the board faster and less forgiving, which is why race boards are around 26 inches and why nobody learns on one. Thirty-two inches or more is the beginner answer and there is no shame in staying there.
Length mostly buys glide. A 12'6" touring board tracks straighter and holds speed better than a 10'6" all-around, and is correspondingly harder to turn and to fit in a car park. If you are not sure, the all-around shape exists precisely because it is the least wrong answer for someone who does not yet know what they will end up doing.
The paddle should be taller than you. That surprises people, but you are reaching down past the rail into the water, so a paddle level with your head would be far too short. Around eight to ten inches over your height is the all-around starting point; surf paddles are shorter for quick strokes and race paddles longer for reach.
How to use
- Enter your weight and intended use.
- Read the suggested volume and dimensions.
- Set the paddle length from your height.
- Err toward more volume if you are learning.
Frequently asked questions
How much volume do I need?
Enough to float you and your gear with a comfortable margin — a common guide is volume in litres somewhat above your weight in kilograms, with more for beginners. Too little volume means the board sits low, feels unstable and is exhausting to paddle.
Does width or length matter more?
Width for stability, length for speed and tracking. A wider board is far easier to learn on and slower; a longer narrower board covers distance efficiently and demands better balance. Most beginners are best served by width they will later outgrow.
How long should my paddle be?
Roughly 20 to 25 centimetres above your height for general paddling, shorter for surfing and longer for touring and racing. An adjustable paddle is worth having while you work out your preference, since it is a bigger factor in comfort than people expect.
Are inflatable boards any good?
Considerably better than their reputation. Modern drop-stitch construction is stiff enough for almost all recreational use, and they store and travel far more easily. A hard board is still faster and more responsive, which matters for racing and surfing and rarely otherwise.
What should I wear?
A buoyancy aid, and in cold water a wetsuit or drysuit rather than optimism. A leash is the single most important item — a board blown away from you becomes unreachable very quickly, and the board is your flotation. Leash choice differs by water type, and a fixed leash in moving water is dangerous.
Can I paddle anywhere?
Not without checking. Offshore wind is the classic paddleboarding hazard, because it is easy to paddle out and impossible to return. Tidal water, rivers with strainers, and busy navigation channels all have specific risks, and local advice is worth more than any board specification.
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