Calculate wavelength from frequency or frequency from wavelength using the speed of light. Convert between electromagnetic spectrum bands.
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Visible light: 4-8×10¹⁴ Hz
Visible light: 400-700 nm
How this calculator works
The speed of light in vacuum is exactly 299,792,458 m/s. Wavelength times frequency equals the speed of light.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
