Frequency Wavelength Calculator
Convert between frequency and wavelength.
Enter your values
ⓘ Live results
Results
- Wavelength
- 0.779545 m
- In centimetres
- 77.9545
- Wave speed used
- 343 m/s
- Period
- 0.00227273 s
- Wavenumber
- 1.282799 1/m
Quick answer
Wave speed equals frequency times wavelength, so raising one lowers the other at fixed speed.
v = f × λ
How to use the Frequency Wavelength Calculator
- 1Enter the wave frequency in hertz.
- 2Pick the medium or enter a custom speed.
- 3Read the wavelength and period.
Frequently asked questions
What is the wavelength of A440?
About 0.78 m in air at room temperature.
Does temperature affect sound speed?
Yes — roughly +0.6 m/s per °C.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.