Audiofile Calc

25 audio engineering calculators. Upgrade to Calc Pro for LUFS targets, batch mode, and PDF share. One-time: $4.99.

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.