Surfing Calculators
Free surfing calculators: surfboard volume for your skill level, wetsuit thickness by water temp, wave height converter, and trip tools.
Swell Travel Time Calculator
Estimate when a swell will arrive at your surf spot. Enter the swell period, storm distance, and direction to forecast arrival time and wave speed.
Surf Session Calorie Burn Calculator
Estimate calories burned surfing by body weight, session length, and wave intensity. Breaks down energy use across paddling, active surfing, and lineup rest.
Surfboard Wax Quantity Calculator
Calculate how much surfboard wax you need by board size and water temperature. Get bars per session and recommended wax temperature for grippy traction.
Surfboard Fin Size Guide Calculator
Find the right surfboard fin size for your weight, surf style, and board type. Get base, height, and rake recommendations for single, thruster, and quad setups.
Surf Leash Length Calculator
Find the correct surf leash length for your board size and wave conditions. A properly sized leash keeps you safe and prevents your board from hitting others.
Wave Face Height Calculator
Convert swell height to wave face height using the Hawaiian scale and local buoy reports. Understand what surf reports actually mean in real wave size.
Wave Period and Speed Calculator
Calculate ocean wave speed, wavelength, and energy from wave period. Understand swell forecasts and predict wave quality at your break.
Wetsuit Thickness Calculator
Find the right wetsuit thickness for any water temperature. Avoid being too cold or too hot in the water with the right neoprene choice.