Music Tools
Set your delay time to the tempo, find the frequency of any note, tap out an unknown BPM or slow a track down for practice. The music tools handle the math that sits between an idea and a take — equal temperament, tempo-synced times, key transposition — instantly and ad-free.
10 tools, ready when you are
- BPM Delay Calculator Turn any BPM into tempo-synced delay and reverb times: straight, dotted and triplet note values in milliseconds. Music
- Note Frequency Calculator Convert any note and octave to its exact frequency in Hz under equal temperament, with MIDI numbers and cents offsets. Music
- Tap Tempo Calculator Tap along with a beat to find its BPM — averaged intervals, median BPM and a steadiness read on your taps. Music
- Tone Generator Play a pure tone in your browser by note or frequency — sine, square, sawtooth or triangle, 20 Hz to 20 kHz. Music
- Playback Speed Calculator See how long a podcast, lecture or audiobook takes at 1.25x, 1.5x, 2x — new duration plus time saved at every speed. Music
- Chord Transposer Transpose chord progressions up or down in semitones, with correct sharp/flat spelling and capo shapes. Music
- Camelot Wheel Calculator Convert any key to its Camelot code (8A, 8B…) and list the harmonically compatible keys around it. Music
- Set Time Calculator Total a DJ or live set: paste track lengths, add transition gaps, and get the exact running time. Music
- Sample Length Calculator Convert bars at a BPM into seconds, milliseconds and samples — or turn a length in seconds back into bars. Music
- Audio Bitrate Calculator Convert bitrate and duration into file size (and back), with per-minute and per-hour storage estimates. Music
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