Quarter note 1/4
- Input
- 128 BPM, 1/4
- Expected output
- 468.75 ms
60,000 ÷ 128.
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128 bpm delay time
Type 128 in the tempo field. The quarter-note row is highlighted and the straight, dotted and triplet columns show the rest. Press any number to copy it without leaving the page.
60,000 ÷ 128.
Half of the quarter note.
234.375 × 1.5.
468.75 × 2/3.
A quarter of the quarter note.
1000 ÷ 468.75.
Divide 60,000 by the BPM to get the length of a quarter note in ms. For other note values, multiply by 4 and divide by the denominator: at 120 BPM, 60,000 ÷ 120 = 500 ms for 1/4, 250 ms for 1/8 and 125 ms for 1/16.
There is no single answer. The dotted 1/8 (351.56 ms) and the 1/4 (468.75 ms) are common starting points, and the choice depends on the space the mix leaves between phrases.
Grid-aligned repeats reinforce the rhythm instead of blurring it. A free delay of 450 ms at 128 BPM lands 18.75 ms before the beat, and the drift builds with every repeat.
No, they change in inverse proportion to the tempo. At 130 BPM the quarter note lasts 461.54 ms. Type the new BPM in the field and the table updates.
It is 117.1875 × 1.5 = 175.78 ms. It is the short time often chosen for quick repeats that still move with the music, and the table shows the value on the 1/16 row, Dotted column.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| 1/1 | |||
| 1/2 | |||
| 1/4 | |||
| 1/8 | |||
| 1/16 | |||
| 1/32 | |||
| 1/64 |