wavelength calculator enter the value and click "calculate", the calculation result will be displayed. choose a calculator: --Select-- wave frequency wave speed wavelength current speed: customize vacuum lighting light in air light in water light in glass sound in the air at 20°c sound in the air at 40°c sound in rubber sounds in leads sound of gold sound in glass copper sound aluminum sound wave speed (v): cm/s m/s km/h ft/s mph knots c wave frequency (f): Hz kHz MHz GHz THz wavelength (λ): nm μm mm cm m km in ft yd mi calculation result: ---: ---