Wave Physics

Wave / Frequency / Wavelength Calculator

Calculate wave speed, frequency, or wavelength. Essential for understanding sound waves, light, radio signals, and all wave phenomena.

Wave Frequency Wavelength illustration

About This Tool

Wave Physics Calculator

The Wave, Frequency, and Wavelength Calculator helps you understand the fundamental wave equation v = fλ. This relationship applies to all types of waves, from sound and light to radio signals and ocean waves.

With built-in presets for common wave speeds (light in vacuum, sound in air, water, and steel), this tool makes it easy to solve wave-related problems. It's essential for antenna design, audio engineering, optics, and telecommunications applications.

Wave speed in m/s, km/h, or as fraction of light speed
Frequency: Hz, kHz, MHz, GHz, THz
Wavelength: m, cm, mm, μm, nm, km
Perfect for radio antenna and optics calculations

Calculator

Select what you want to calculate

Quick Presets

How It Works

The wave equation relates wave speed, frequency, and wavelength. This fundamental relationship applies to all types of waves.

Wave Speed = Frequency × Wavelength

v = f × λ

Frequency = Wave Speed ÷ Wavelength

f = v / λ

Wavelength = Wave Speed ÷ Frequency

λ = v / f

Use Cases

  • Radio antenna design
  • Audio and acoustics engineering
  • Light and optics calculations
  • Telecommunications planning

Limitations

Wave speed depends on the medium. Light slows in glass, sound varies with temperature and material density.

  • Speed varies with medium properties
  • Temperature affects wave speed
  • Does not account for dispersion