Acoustics reference
Audio Frequency & Wavelength Calculator
Convert frequency to acoustic wavelength using a temperature-adjusted estimate of the speed of sound.
Calculate acoustic wavelength
Enter frequency and air temperature. Results are shown in metres, feet and inches.
Why wavelength matters in audio
Wavelength connects frequency to physical dimensions. It is useful when thinking about room modes, loudspeaker spacing, microphone spacing, boundary interactions, diffuser dimensions and the scale at which an acoustic object becomes large relative to a sound wave.
Temperature and sound speed
The calculator estimates sound speed from air temperature. Humidity and atmospheric composition also affect sound speed, but temperature is the dominant correction for ordinary audio calculations.
Practical scale
Low-frequency wavelengths are long compared with most studio dimensions, while high-frequency wavelengths are short enough that small position changes can alter interference patterns. That difference is central to why bass problems behave so differently from high-frequency reflections.