57 BPM in milliseconds
At 57 BPM one beat lasts 1,052.6 ms, which is 0.95 beats per second. One bar of 4/4 takes 4.21 seconds.
Largo usually means about 40–59 BPM.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole | 4,210.5 | 6,315.8 | 2,807.0 |
| Half | 2,105.3 | 3,157.9 | 1,403.5 |
| Quarter | 1,052.6 | 1,578.9 | 701.8 |
| Eighth | 526.3 | 789.5 | 350.9 |
| 16th | 263.2 | 394.7 | 175.4 |
| 32nd | 131.6 | 197.4 | 87.7 |