MARINE
Wave Height Calculator
Significant wave height · Wind speed · Fetch · Duration · Sea state · Wave period
wind-generated
sea state
Wind & fetch parameters
kt
Wind speed at 10m height
NM
Distance over which wind blows
hr
How long wind has been blowing
m
Depth affects shallow water waves
Wave formulas (SMB)
- H_s = 0.0243 × U²/g × (gF/U²)^1/3 significant wave height
- T_p = 0.729 × U/g × (gF/U²)^1/3 peak period
- Sea State = Beaufort scale wave classification
Significant wave height
2.8
m
Maximum wave height
5.3
m
Peak period
6.8
s
Wave profile
Wave
Significant
Maximum
Sea state: Beaufort 5
Wave details
Wind speed
25
kt
Fetch length
50
NM
Wave length
62
m
Wave steepness
0.045
ratio
Sea state classification
Douglas scale
Calm
0-0.1m
Slight
0.1-1.0m
Moderate
1.0-2.5m
Rough
2.5-4.0m
Current H_s
2.8 m