wavelength → frequency
f = c / λ — wavelength in metres
Wavelength to Frequency Calculator
The wavelength to frequency calculator converts electromagnetic wavelength (in meters) into frequency (in Hz) using the formula f = c / λ, where c is the speed of light (3 × 10⁸ m/s). This conversion is essential in RF engineering, antenna design, telecommunications, and wireless communication systems.
Formula Used
f = Frequency (Hz)
c = 3 × 10⁸ m/s (Speed of Light)
λ = Wavelength (meters)
Example Calculations
Example 1: λ = 2 meters
Example 2: λ = 0.5 meters
Wavelength to Frequency Reference Chart
| Wavelength (m) | Frequency (Hz) | Frequency (MHz) |
|---|---|---|
| 10 | 3 × 10⁷ | 30 |
| 2 | 1.5 × 10⁸ | 150 |
| 1 | 3 × 10⁸ | 300 |
| 0.5 | 6 × 10⁸ | 600 |
| 0.1 | 3 × 10⁹ | 3000 |
FAQ
The formula is f = c / λ, where c = 3 × 10⁸ m/s.
Because the speed of light is constant in free space. If wavelength increases, frequency must decrease to maintain the same propagation speed.
Yes. This formula applies to all electromagnetic waves including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.