How does the Wavelength Calculator work?

λ = v / f (wavelength = wave speed / frequency) Then: For electromagnetic waves: v = c = 3 × 10⁸ m/s Then: Frequency f is in Hz (cycles/second) Then: Wavelength λ is in metres.

Can you give an example of how to use the Wavelength Calculator?

Example: Input FM radio at 100 MHz gives a result of λ = 3.0 m (3×10⁸ / 10⁸ = 3 m).

Is the Wavelength Calculator free to use?

Yes — completely free with no registration, download, or subscription required. All calculations happen instantly in your browser.

How accurate is the Wavelength Calculator?

Our Wavelength Calculator uses verified mathematical formulas and is accurate to multiple decimal places. Results are calculated in real-time using the same methods used by professionals.

Thực tế

Wavelength Calculator

Wavelength & Frequency Calculator

Frequency f (Hz)

Wave speed v (m/s)

Wavelength is the distance between two consecutive peaks (or troughs) of a wave. Together with frequency and wave speed, it describes how waves travel through space. The formula λ = v/f relates all three.

Type	Wavelength range	Frequency range
Radio	> 1 mm	< 300 GHz
Microwave	1 mm – 1 m	300 MHz – 300 GHz
Infrared	700 nm – 1 mm	300 GHz – 430 THz
Visible light	380 – 700 nm	430 – 790 THz
Ultraviolet	10 – 380 nm	790 THz – 30 PHz
X-ray	0.01 – 10 nm	30 PHz – 30 EHz
Gamma ray	< 0.01 nm	> 30 EHz

References

›Wavelength — Wikipedia

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Wavelength Calculator

Wavelength & Frequency Calculator

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Electromagnetic Spectrum

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