Fundamental Frequency Calculator | Acoustical Engineer

Pipe Standing Wave End Conditions

Using the Calculator

Choose end conditions of pipe or string
Enter speed of sound
Enter length of pipe or string

Learn about Resonance

Learn about Fundamental Frequencies

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Equations

End Conditions	Same	Different
Fundamental Frequency	$f=\frac{c}{2L}$	$f=\frac{c}{4L}$
Harmonic Multiples	Even ( $2f$ , $4f$ , $6f$ . . .)	Odd ( $3f$ , $5f$ , $7f$ . . .)

This calculator uses the equations in the table to calculate the fundamental frequency. Remember that real-life results may vary from ideal models.