90 BPM in milliseconds
At 90 BPM one beat lasts 666.7 ms, which is 1.5 beats per second. One bar of 4/4 takes 2.67 seconds.
Andante usually means about 76–107 BPM.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole | 2,666.7 | 4,000.0 | 1,777.8 |
| Half | 1,333.3 | 2,000.0 | 888.9 |
| Quarter | 666.7 | 1,000.0 | 444.4 |
| Eighth | 333.3 | 500.0 | 222.2 |
| 16th | 166.7 | 250.0 | 111.1 |
| 32nd | 83.3 | 125.0 | 55.6 |