Work out music bpm instantly with clear inputs, formula shown and shareable results.
Tempo is beats counted times sixty divided by the seconds counted, and the millisecond period is sixty thousand divided by that tempo. Counting over fifteen seconds and multiplying by four is accurate enough for DJ work, and doubling the window halves the error from a mistimed start.
Tempo
bpm = beats counted x 60 / seconds counted
Beat period
milliseconds per beat = 60000 / bpm
bpm = beats counted x 60 / seconds counted. Tempo is beats counted times sixty divided by the seconds counted, and the millisecond period is sixty thousand divided by that tempo.
Counting over fifteen seconds and multiplying by four is accurate enough for DJ work, and doubling the window halves the error from a mistimed start.
Enter beats you counted, time you counted over. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.