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.
LFO Rate ConverterConvert note divisions to Hz for unsynced LFOs and modulation.
Tap TempoTap any key to find the BPM of what you're hearing.
Pitch & Key
Harmonic mixing: pick a key, see every compatible key instantly.
Note to FrequencyEvery note's frequency in Hz — tune kicks, 808s, and resonances by ear and by number.
Transposition CalculatorMove between keys and see what every note becomes.
Sample TunerSemitones, cents, and playback-rate math for pitching samples.
Scale & Key ReferenceNotes of every scale in every key, with MIDI numbers.
Chord Progressions by KeyWorking progressions in any key, with the theory behind why they move.
Pitch Shift CalculatorSemitone shifts to frequency ratios and playback-rate percentages.
Mix & Master
Loudness and true-peak targets for every streaming platform, plus club-master guidance.
Compressor Attack/ReleaseTempo-aware starting points for attack and release times, per genre.
Sidechain Pump CalculatorRelease times that lock the pump to your tempo.
EQ Frequency Cheat SheetWhere every instrument lives in the spectrum, and where they collide.