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Wavelength Calculator

Calculate wavelength from wave speed and frequency. Free, accurate, no sign-up required.

๐Ÿ“– Read the complete Wavelength Calculator guide โ†’

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Wavelength

Formula

ฮป = v รท f (Wavelength = Speed รท Frequency)

Example

Sound at 340m/s, 440Hz โ†’ ฮป = 0.773m

Frequently Asked Questions

Speed of sound?

About 340 m/s in air at 20ยฐC, faster in water (~1480 m/s).

Speed of light?

299,792,458 m/s in vacuum. At 440 THz (yellow light) โ†’ ฮป โ‰ˆ 682nm.

Visible light spectrum?

Approximately 380nm (violet) to 700nm (red).

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