144 BPM in milliseconds
At 144 BPM one beat lasts 416.7 ms, which is 2.4 beats per second. One bar of 4/4 takes 1.67 seconds.
Allegro usually means about 120–167 BPM.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole | 1,666.7 | 2,500.0 | 1,111.1 |
| Half | 833.3 | 1,250.0 | 555.6 |
| Quarter | 416.7 | 625.0 | 277.8 |
| Eighth | 208.3 | 312.5 | 138.9 |
| 16th | 104.2 | 156.3 | 69.4 |
| 32nd | 52.1 | 78.1 | 34.7 |