Conversions & Fundamentals

Frequency ↔ Wavelength

Convert frequency and free-space wavelength in practical RF units.

Inputs

Results update as you enter values. Inputs stay in this browser session only.

Known value

Known unit

Frequency (Hz)

1.000e+9 Hz

Frequency (kHz)

1.000e+6 kHz

Frequency (MHz)

1,000 MHz

Frequency (GHz)

1 GHz

Wavelength (m)

0.2998 m

Wavelength (cm)

29.98 cm

Wavelength (mm)

299.8 mm

λ = c/f, where c = 299,792,458 m/s.

Free space only; guided wavelength depends on the medium and mode.