Tempo, beat length and delay times
Convert a tempo in beats per minute into note lengths and delay times, including dotted and triplet subdivisions.
- BPM to milliseconds
- Note durations
- Dotted and triplet delays
- Tempo markings
The beat
Tempo120 BPM
One beat (quarter note)500 ms
Beats per second22 Hz
One bar in 4/42,000 ms
Bars per minute in 4/430
Tempo markingModeratothe Italian markings are conventions with overlapping ranges, not definitions
Note lengths and delay times
Whole (semibreve)2,000 msdotted 3,000 ms · triplet 1,333.33 ms
Half (minim)1,000 msdotted 1,500 ms · triplet 666.67 ms
Quarter (crotchet)500 msdotted 750 ms · triplet 333.33 ms
Eighth (quaver)250 msdotted 375 ms · triplet 166.67 ms
Sixteenth (semiquaver)125 msdotted 187.5 ms · triplet 83.33 ms
Thirty-second (demisemiquaver)62.5 msdotted 93.75 ms · triplet 41.67 ms
Common uses
Slapback delay62.5 msa thirty-second note
Pre-delay for a bar-length reverb31.25 ms
LFO rate for one cycle per bar0.5 Hz
Samples per beat at 44.1 kHz22,050
Samples per beat at 48 kHz24,000