155 BPM in milliseconds
At 155 BPM one beat lasts 387.1 ms, which is 2.58 beats per second. One bar of 4/4 takes 1.55 seconds.
Allegro usually means about 120–167 BPM.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole | 1,548.4 | 2,322.6 | 1,032.3 |
| Half | 774.2 | 1,161.3 | 516.1 |
| Quarter | 387.1 | 580.6 | 258.1 |
| Eighth | 193.5 | 290.3 | 129.0 |
| 16th | 96.8 | 145.2 | 64.5 |
| 32nd | 48.4 | 72.6 | 32.3 |