Studio math, solved
Calculators built for
the session, not the search result.
Every tool here answers one question a producer actually has mid-session — with genre presets, the formula shown, and a number you can copy straight into your DAW. No signup, no fluff, fast enough to not break your flow.
Timing & Sync
BPM to delay times for every note division — straight, dotted, triplet — with genre presets.
Reverb CalculatorPre-delay and decay times locked to your tempo, with genre-aware size suggestions.
BPM to MillisecondsInstant beat-length conversion: one BPM in, every note length out.
Convert note divisions to Hz for unsynced LFOs and modulation.
Tap any key to find the BPM of what you're hearing.
Pitch & Key
Harmonic mixing: pick a key, see every compatible key instantly.
Every note's frequency in Hz — tune kicks, 808s, and resonances by ear and by number.
Move between keys and see what every note becomes.
Semitones, cents, and playback-rate math for pitching samples.
Notes of every scale in every key, with MIDI numbers.
Working progressions in any key, with the theory behind why they move.
Semitone shifts to frequency ratios and playback-rate percentages.
Mix & Master
Loudness and true-peak targets for every streaming platform, plus club-master guidance.
Tempo-aware starting points for attack and release times, per genre.
Release times that lock the pump to your tempo.
Where every instrument lives in the spectrum, and where they collide.
Technical
Buffer size and sample rate to round-trip latency in milliseconds.
Sample rate × bit depth × channels × time = exact file size.
Utility
How long is a 128-bar arrangement at 130 BPM? Answered instantly.
Streams to estimated payout across platforms.