Calculate the resonant frequencies of a standing wave on a string or in a tube. Standing waves form when waves reflect and interfere, creating nodes and antinodes.
Enter your values below
1 = fundamental, 2 = first overtone, etc.
Length of the string or tube
Speed of wave in the medium
How this calculator works
Standing wave frequency equals harmonic number times wave speed divided by twice the length. Open-closed tubes use quarter-wavelength modes.
Common questions about this calculator
These calculators are for educational and informational purposes only. While we strive for accuracy, results should be verified for critical applications. Always consult authoritative sources for engineering or scientific work.
