Wave Frequency and Wavelength Calculator
Calculate any one of wave speed, frequency, or wavelength given the other two using the fundamental wave equation.
Fill in any two fields and click Calculate.
Formula
v = f × λ
- v = wave speed (metres per second, m/s)
- f = frequency (hertz, Hz = cycles per second)
- λ (lambda) = wavelength (metres, m)
Rearranged:
- Frequency: f = v ÷ λ
- Wavelength: λ = v ÷ f
Assumptions & References
- The wave equation v = fλ applies to all periodic waves including sound, light, water, and electromagnetic waves.
- Reference: Halliday, Resnick & Krane, Physics, 5th ed., Chapter 17 (Waves).