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DJ pitch calculator
Enter the BPM of the playing track and the one you want to mix in. You get the pitch-fader setting, the pitch shift you would hear without key lock, and the smallest fader range that reaches it.
The formulas
pitch % = (target ÷ track − 1) × 100 and semitones = 12 × log2(target ÷ track). One semitone is about 5.95 % of speed, so small tempo changes are much less than a semitone — ±3 % is about half a semitone, which most listeners won’t notice.
Pitch % between common house and techno tempos
| From \ to | 120 | 122 | 124 | 125 | 126 | 128 | 130 |
|---|---|---|---|---|---|---|---|
| 120 | — | +1.7 | +3.3 | +4.2 | +5.0 | +6.7 | +8.3 |
| 122 | -1.6 | — | +1.6 | +2.5 | +3.3 | +4.9 | +6.6 |
| 124 | -3.2 | -1.6 | — | +0.8 | +1.6 | +3.2 | +4.8 |
| 125 | -4.0 | -2.4 | -0.8 | — | +0.8 | +2.4 | +4.0 |
| 126 | -4.8 | -3.2 | -1.6 | -0.8 | — | +1.6 | +3.2 |
| 128 | -6.2 | -4.7 | -3.1 | -2.3 | -1.6 | — | +1.6 |
| 130 | -7.7 | -6.2 | -4.6 | -3.8 | -3.1 | -1.5 | — |
What each fader range reaches
| Track | Range | Playable tempos | Max pitch shift |
|---|---|---|---|
| 120 BPM | ±6 % | 112.8–127.2 BPM | 1.01 semitones |
| 124 BPM | ±8 % | 114.1–133.9 BPM | 1.33 semitones |
| 128 BPM | ±8 % | 117.8–138.2 BPM | 1.33 semitones |
| 140 BPM | ±8 % | 128.8–151.2 BPM | 1.33 semitones |
| 174 BPM | ±6 % | 163.6–184.4 BPM | 1.01 semitones |
Get exact tempos for your tracks with the BPM detector or the batch analyzer, and read BPM for DJ mixing for key, phrasing and set planning.