How to use the deep water wave speed calculator
Find the speed and period of ocean waves in deep water from their wavelength. Enter wavelength in the field above; the deep water wave speed, wave period are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “ocean wave speed”, “deep water waves”, “wave period from wavelength”, “calculate deep water wave speed”, “find deep water wave speed”.
Formula
Variables
- L — Wavelength (m)
Worked example
With wavelength = 20 m, the calculator gives deep water wave speed ≈ 5.587087 m/s; wave period ≈ 3.579683 s.
Frequently asked questions
What is the deep water wave speed calculator used for?
Find the speed and period of ocean waves in deep water from their wavelength. It helps with questions such as “ocean wave speed”, “deep water waves”, “wave period from wavelength”.
What is the formula for the deep water wave speed calculation?
Deep water wave speed (m/s) = √(GRAV × L / (2 × π)). Wave period (s) = L / [Deep water wave speed]. Here L is wavelength (m).
What inputs do I need for the deep water wave speed calculator?
You need wavelength in m. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the deep water wave speed calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the deep water wave speed result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.