Air Column Resonance Calculator (Open & Closed Pipes)
Resonant frequencies of open-open and closed-open pipes (flutes, organ pipes, tubes).
How to use the Air Column Resonance Calculator
- Enter or select: Pipe type, Length L, Speed of sound, Harmonic number n.
- The results (Frequency fₙ, Wavelength, First five resonances (Hz)) are calculated instantly as you type.
- Use “Copy link” to share the calculation with the same input values.
Formula
- Open: fₙ = n·v/(2L)
- Closed: fₙ = (2n − 1)·v/(4L)