Free, no-sign-up calculators and reference tools for music producers, recording and mixing engineers, and DJs. Everything runs instantly in your browser — bookmark this page and come back whenever you need a quick answer.
All tools
- Delay Time Calculator (BPM to ms)
- Reverb Pre-Delay & Decay Calculator
- Note to Frequency Converter & Chart
- Tap Tempo / BPM Counter
- Audio File Size Calculator (WAV / PCM)
- Song Length Calculator (Bars to Seconds)
- Online Metronome (Free)
- Room Mode Calculator (Studio Acoustics)
- Camelot Wheel — Harmonic Mixing Tool
- EQ Frequency Chart & Cheat Sheet
- SPL Distance Calculator (Inverse-Square Law)
- Scale & Chord Finder
- Circle of Fifths Reference
- LUFS Loudness Targets & Calculator
- Decibel (dB) Calculator
- Frequency to Wavelength Calculator
- Genre BPM Chart
- Chord Transpose & Capo Calculator