Wave Period Calculator
Calculate wave period from frequency, or from wavelength for deep-water ocean waves.
Compare Your Options And Get Clear Answers
Calculate wave period from frequency, or from wavelength for deep-water ocean waves.
Wave Period Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Results update as you change the inputs.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Wave Quick Guide
Typical values for reference.
| Wavelength m | Period s | Speed m/s | Knots |
|---|---|---|---|
| 25 | 4.00 | 6.25 | 12.1 |
| 50 | 5.66 | 8.83 | 17.2 |
| 100 | 8.00 | 12.49 | 24.3 |
| 200 | 11.32 | 17.67 | 34.3 |
| 400 | 16.01 | 24.99 | 48.6 |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Wave Period Calculator FAQ
Answers to common questions about this calculator.
The time for one full wave cycle to pass a point.
In deep water period grows with the square root of wavelength.
Period = 1 / frequency; deep-water period = sqrt(2 pi x wavelength / g).
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.