What is the wavelength of visible light?

Visible light ranges from about 380 nm (violet) to 700 nm (red).

How does wavelength change when a wave enters a denser medium?

The wavelength decreases because the wave slows down while frequency remains constant.

What is the wavelength of a typical FM radio signal?

FM radio broadcasts around 100 MHz, giving a wavelength of about 3 meters.

Free Wavelength Calculator

Calculate wavelength from wave speed and frequency using lambda = v / f.

Save

Wave Speed

m/s

Frequency

Wavelength

0.7795 m

Wavelength (cm)77.95 cm

Wavelength vs Wave Speed

View formula & how it works →

Wavelength

Wavelength is the spatial distance between two consecutive points of equal phase on a wave.

Formula

lambda = v / f

Longer wavelengths correspond to lower frequencies when speed is constant.

Example Calculation

Concert A note (440 Hz) in air at 343 m/s.

01lambda = v / f
02lambda = 343 / 440
03lambda = 0.7795 m
04lambda = 77.95 cm

Frequently Asked Questions

Learn More

Understanding Newton's Laws of Motion

A comprehensive guide to Newton's three laws of motion. Learn about inertia, force and acceleration, action-reaction pairs, and how these principles govern everyday physics.

Related Calculators

Wave Speed Calculator

Calculate wave speed from frequency and wavelength.

Frequency Calculator

Find frequency from speed and wavelength.

Sound Wavelength Calculator

Calculate sound wavelength with temperature correction.