Audiofile Calc

The audio engineering calculator you've relied on for years — completely reimagined.

Audiofile Calc has been rebuilt from the ground up with a modern interface, ergonomic controls, and a new Calc Pro tier that takes your calculations further.

FREE CALCULATORS

Length
– Note Length
– Bar Length
– Song Length
– Beats to Tempo
– Time to Samples
– Samples to Time
– Compare Tempos
– Change Tempo
– Sum Times
– Subtract Times

Pitch
– Note Name to Frequency / MIDI / Wavelength
– MIDI Note to Frequency / Note Name / Wavelength
– Frequency to Note Name / MIDI / Wavelength
– Wavelength to Frequency / Note Name / MIDI

Timecode
– Frames to Timecode
– Convert Timecode
– Change Timecode

Electric
– Compare Power
– Compare Voltage

Acoustics
– Distance to Time
– Delay
– Time to Distance
– Sound Pressure Level (SPL)
– Panning

Files
– File Size

CALC PRO — $4.99 one-time

Unlock a suite of advanced calculators built for professional engineers and producers:

– LUFS Target — streaming loudness compliance for Spotify, Apple Music, YouTube, and broadcast (EBU R128)
– Nyquist Frequency — sample rate requirements, aliasing thresholds, anti-aliasing filter cutoffs
– Equal Loudness — Fletcher-Munson curves, equal-loudness compensation
– Cable Attenuation / Impedance — signal loss over cable runs, impedance matching
– Batch Conversion — sweep values through any calculator simultaneously
– PDF Share — export any calculation as a clean, professional PDF ready for clients, session notes, or technical documentation

One-time purchase. No subscription.

Audiofile is a boutique technology company building precision tools for the world's musicians and engineers.