The basic formula
One beat in milliseconds ≈ 60000 ÷ BPM.
Example: 120 BPM → 60000 ÷ 120 = 500 ms per quarter note.
| Note | Multiplier | At 120 BPM |
|---|---|---|
| 1/4 | 1 × beat | 500 ms |
| 1/8 | 0.5 × beat | 250 ms |
| 1/16 | 0.25 × beat | 125 ms |
| Dotted 1/8 | 0.75 × beat | 375 ms |
| Triplet 1/8 | 1/3 × beat | ~167 ms |
How to use this with BPMfinder
- Detect BPM on app.html.
- Compute 60000 ÷ BPM for the quarter-note length.
- Multiply for the note value you want.
- Enter that value into your delay plugin.
Some tools show delay tables automatically. The math stays the same whether you calculate by hand or use a helper.
Musical warning
Perfect grid delays can sound robotic on human performances. Use tempo-synced values as a starting point, then nudge by ear. Production is still listening first.