Wave Height & Period Calculator
Calculate significant wave height, period, and wavelength from wind speed, fetch distance, and duration using the SMB method.
Inputs
knots
km
hours
Results
Significant Wave Height (Hs)
1.98 m
Wave Period5.7 s
Wavelength50 m
Max Wave Height (Hmax)3.69 m
Wave Steepness (H/L)0.04
Beaufort Scale5
How to Use This Calculator
- Enter Wind Speed, Fetch Distance, and Wind Duration.
- Review the Significant Wave Height (Hs) (m) result.
- Use Wave Period (s) and Wavelength (m) to inform your decision.
Ad Placeholder
Related Calculators
Tidal Range Predictor
Predict spring and neap tidal ranges from mean tidal range, lunar phase, and solar declination factor.
Tsunami Travel Time Calculator
Calculate tsunami propagation speed and arrival time from ocean depth and distance using shallow water wave theory (v = √(g·d)).
Ocean Current Speed Calculator
Calculate geostrophic current velocity from pressure gradient, latitude, and water density using Coriolis-adjusted equations.
Marine Sound Propagation Calculator
Calculate the speed of sound in seawater from temperature, salinity, and depth using the Mackenzie equation.
Ad Placeholder