Wavelength ↔ Wavenumber calculator
Convert between wavelength, frequency and spectroscopic wavenumber.
Category: Photonics
Formula: ν̃ = 1/λ · ν = c/λ
Inputs
| Input | Parameter | Unit | Default |
|---|---|---|---|
| λ | lam | nm | 532 |
Result with the default inputs
- Wavenumber: 18796.9925 cm⁻¹
- Frequency: 563.5197 THz
Open it with your own values: put each input in the address as a parameter, for example /calculators/wavelength-wavenumber?lam=532. A unit other than the listed one goes in <parameter>_unit.
Read more: Wikipedia: Wavenumber