Last updated: March 2, 2026 by James Wilson

Wavelength, Frequency, and Wave Speed

Formula

λ = v / f

Wavelength (λ) is the distance between consecutive wave crests. It relates to frequency (f) and wave speed (v) by λ = v/f. For sound at 343 m/s, a 440 Hz tone (concert A) has a wavelength of about 0.78 m. For light at 3×10⁸ m/s, visible wavelengths range from 380-700 nm.

Common use cases:

  • Antenna design and RF engineering
  • Musical acoustics analysis
  • Optical system design

Frequently Asked Questions

JW

James Wilson

Licensed Professional Engineer, PE, MS Civil Engineering

James is a Licensed Professional Engineer with a Master's in Civil Engineering and over 12 years of experience in structural design and construction project management. He specializes in building calculations, material estimation, and physics-based engineering tools.

Share & Embed

Was this calculator helpful?

Related Calculators