Wavelength Calculator
Convert between wavelength and frequency using the speed of light
How to use this calculator:
🌈 Light Spectrum
Use case: Calculate wavelength from frequency for visible light.
Example: f=100,000,000 Hz → λ=2.998 m
📻 Electromagnetic Waves
Use case: Work with radio waves, microwaves, and other EM radiation.
Example: f=2.45 GHz → λ=12.2 cm (microwave)
Wavelength ↔ Frequency Converter
Enter either frequency or wavelength for real-time conversion
Formulas:
λ = c / f (Wavelength from frequency)
f = c / λ (Frequency from wavelength)
where c = 299,792,458 m/s (speed of light)
Examples: 100000000 (FM radio), 5e14 (visible light)
Examples: 1 (radio), 0.0005 (visible light), 1e-9 (X-ray)
Common Examples:
Visible Light (Green):
Frequency: 5.5×10¹⁴ Hz → Wavelength: 5.45×10⁻⁷ m (545 nm)
WiFi (2.4 GHz):
Frequency: 2,400,000,000 Hz → Wavelength: 0.125 m (12.5 cm)
AM Radio (1 MHz):
Frequency: 1,000,000 Hz → Wavelength: 299.8 m
Use Cases:
Antenna Design: Calculate optimal antenna lengths based on operating frequency
Optics: Determine wavelengths for different colors of light
Wireless Systems: Understand signal propagation and interference patterns
Astronomy: Analyze electromagnetic radiation from celestial objects