Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Filter Cutoff Calculator

Convert a MIDI note number and octave offset into its corresponding filter cutoff frequency in Hz. Useful for synth programming and sound design when you want to tune a filter precisely to a musical pitch or harmonic relationship.

MIDI Note

Octave Offset (octaves)

Fill in the required fields to see your result.

Music

Loop Length Calculator

Convert a musical loop length in bars into its duration in seconds at any tempo. Use it when programming drum machines, DAWs, or live sets where loop timing must sync with BPM.

Loop Length (Bars) (bars)

Tempo (BPM) (BPM)

Beats Per Bar (beats)

Fill in the required fields to see your result.

Key differences

	Filter Cutoff Calculator	Loop Length Calculator
Category	Music	Music
Inputs required	2	3
Result	Cutoff Frequency (Hz)	Loop Duration (seconds)
What it does	Convert a MIDI note number and octave offset into its corresponding filter cutoff frequency in Hz. Useful for synth programming and sound design when you want to tune a filter precisely to a musical pitch or harmonic relationship.	Convert a musical loop length in bars into its duration in seconds at any tempo. Use it when programming drum machines, DAWs, or live sets where loop timing must sync with BPM.