6 music production calculators.
No sign-up. No tracking. No ads.
Note values in ms and Hz for any tempo — delay, pre-delay and LFO sync times.
Note to Hz and Hz to nearest note (with cents), adjustable A4 reference.
Interval between two frequencies in cents and semitones, or cents to ratio.
Loop length in seconds, samples and file size from bars, BPM and sample rate.
Key ↔ Camelot code with the harmonically compatible keys for DJ mixing.
BPM change to speed ratio, vari-speed pitch shift in semitones and new length.
A set of music production calculators for producers, engineers and DJs: tempo-synced delay and reverb times from BPM, note-to-frequency conversion with an adjustable A4 reference, cents and interval maths, bars-to-seconds with sample counts and file sizes, the Camelot wheel for harmonic mixing, and the pitch consequences of changing tempo. Pure maths, all in your browser. (Looking for tools that make sound — metronome, tone generator, BPM tapper? They live in the Audio category.)
They use the standard formulas: 60000 ÷ BPM for the beat, equal-temperament frequency = A4 × 2^(semitones ÷ 12), cents = 1200 × log2(ratio), and the standard Camelot wheel mapping. All exact for the maths; rooms, analogue gear and ears add their own colour.
No. Every calculator runs entirely in your browser with no download, sign-up, or data leaving your device.
BPM to milliseconds, note to frequency, cents and intervals, bars to seconds, the Camelot key wheel and the time-stretch / pitch calculator.