150 BPM in milliseconds
At 150 BPM one beat lasts 400.0 ms, which is 2.5 beats per second. One bar of 4/4 takes 1.6 seconds.
Allegro usually means about 120–167 BPM.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole | 1,600.0 | 2,400.0 | 1,066.7 |
| Half | 800.0 | 1,200.0 | 533.3 |
| Quarter | 400.0 | 600.0 | 266.7 |
| Eighth | 200.0 | 300.0 | 133.3 |
| 16th | 100.0 | 150.0 | 66.7 |
| 32nd | 50.0 | 75.0 | 33.3 |