Note Values & Rest Durations
The note durations of standard notation — US and UK names, how many beats each lasts in 4/4, and its fraction of a whole note. Rests follow the same lengths.
| US name | UK name | Length in 4/4 | Fraction of a whole note |
|---|---|---|---|
| Double whole note | Breve | 8 beats | 2 |
| Whole note | Semibreve | 4 beats | 1 |
| Half note | Minim | 2 beats | 1⁄2 |
| Quarter note | Crotchet | 1 beat | 1⁄4 |
| Eighth note | Quaver | 1⁄2 beat | 1⁄8 |
| Sixteenth note | Semiquaver | 1⁄4 beat | 1⁄16 |
| Thirty-second note | Demisemiquaver | 1⁄8 beat | 1⁄32 |
| Sixty-fourth note | Hemidemisemiquaver | 1⁄16 beat | 1⁄64 |
A dot after a note adds half its value (dotted quarter = 1½ beats); a triplet fits three in the space of two. Convert note values to milliseconds at any tempo with the delay-time calculator.