Filter geometry / quick reference
Q factor ↔ octave bandwidth
Convert parametric-EQ Q factor to bandwidth in octaves — and back. Add a center frequency to calculate the corresponding logarithmic cutoff frequencies.
All calculations run in this browser. No network connection, external library, or DeGrandis Works website resource is required.
1
Calculator
Q
1.414
Bandwidth
1.00015 oct
Lower cutoff
707.1 Hz
Upper cutoff
1.414 kHz