Tempo Guides
Short, practical write-ups. Each one pairs with a working tool and uses real numbers rather than placeholder examples.
These guides cover the tempo problems that come up in an actual session: finding the BPM of a track, converting it to milliseconds, setting delay and reverb so they sit with the groove, and what happens to pitch when you change speed. Each one pairs with a working tool.
All guides
Pick a problem
- How to Find the BPM of a Song Four ways to find a track tempo, when each is accurate, and why tempo detection so often reports half or double the real value. Guide
- The BPM to Milliseconds Formula Where 60,000 divided by BPM comes from, how note divisions scale from it, and worked examples at the tempos producers actually use. Guide
- Setting Delay Times to Tempo Which note division to reach for, when dotted eighths work and when they clutter, and how to set a delay on a unit that only takes milliseconds. Guide
- Reverb Decay and Pre-Delay What pre-delay and decay actually control, why tying them to tempo keeps a mix clear, and why there is no single correct reverb formula. Guide
- Tempo and Pitch Why speeding a track up raises its pitch, how much, and when modern time-stretching breaks that relationship on purpose. Guide
- Practising With a Metronome How to actually improve with a metronome rather than just play along to one: starting tempos, subdivision work, and the drop-beat exercise. Guide
- Counting Bars and Song Structure Why arrangements move in eights and sixteens, how to map a structure to a target duration, and where bar counts come from in a DAW. Guide
- Half Time and Double Time What half time and double time actually change, why the same track has two defensible BPM values, and how to tell which one a genre uses. Guide
Toolkit
Or go straight to a tool
Every guide explains a tool. If you already know what you need, skip the reading.
- Tap Tempo Counter Tap along with any track to find its BPM, with a live stability readout that tells you when the reading has actually settled. Keyboard or touch. Tool
- Online Metronome A sample-accurate metronome with time signatures, accented downbeats and subdivisions. Runs in the browser with no download and no sign-up. Tool
- Delay Time Calculator Tempo-synced delay times in milliseconds for every note division, including dotted and triplet values, with notes on what each one does. Tool
- Reverb Time Calculator Pre-delay and decay times that sit with your tempo instead of fighting it, with the note-division maths shown for room, plate and hall reverbs. Tool
- Bars and Song Length Calculator Convert bars to minutes and seconds at any tempo and time signature, and work backwards from a target duration to the number of bars. Tool
- BPM to Milliseconds Converter Convert any tempo to milliseconds per beat and back again. Covers every note division from whole notes to 1/64, straight, dotted and triplet. Converter
- BPM to Hertz Converter Convert tempo to frequency in hertz for LFOs, tremolo and any modulation rate set in Hz rather than note values. Covers every note division. Converter
- BPM to Frames Converter Work out how many video frames fall on each beat and bar at your tempo, and how far a bar drifts from whole frames, for cutting to music. Converter
- BPM and Pitch Calculator See what a tempo change does to pitch. Converts between two tempos, a percentage shift and semitones or cents, for turntables and samplers. Converter
- Tempo Change Calculator Work out half-time and double-time tempos, percentage changes and the difference between two tempos, with the effect on beat length shown. Converter
Need every value at once?
The main BPM calculator shows milliseconds, delay times, reverb ranges, hertz and bar length together, updating from a single tempo.
Last reviewed Formulas published on the methodology page Spotted an error? Tell me