BEATTIMINGTOOLS FOR MAKING MUSIC
DJ tempo matching

DJ beatmatch calculator

Match track tempos, calculate the final deck pitch setting, and check current-fader movement, range and beat drift across your transition.

DJ beatmatch: settings and guide

Direction
Change incoming deck+3.226%Speed up 124.000 BPM to 128.000 BPM · within ±8% range
Matched tempo128.000 BPM
Deck rangeFits
Pitch without Key Lock+54.96 cents
32 bars in 4/41:00.000

Reverse direction would require −3.125%. Pulse check: direct BPM is closest at +3.226%. Half/double values describe rhythmic interpretation, not a literal deck-speed instruction.

Check an already-pitched incoming deck
Formula

How to calculate the pitch percentage for beatmatching

Divide the playing track's BPM by the incoming track's original BPM. Subtract one and multiply by 100 to get the deck pitch adjustment. The same speed ratio changes musical pitch when Key Lock or Master Tempo is off.

pitch change (%) = (playing BPM ÷ incoming BPM − 1) × 100

  1. 01

    Enter the tempo already playing, then enter the incoming track's original tempo.

  2. 02

    Choose the pitch range shown on your deck or controller to check whether the match is reachable.

  3. 03

    Use the phrase-time result to plan 8, 16 or 32-bar transitions at the matched tempo.

Worked example

Example: matching 124 BPM to 128 BPM

An incoming 124 BPM track needs about +3.226% pitch to match a playing track at 128 BPM. That fits inside a ±6% or wider fader range. Without Key Lock, the speed change also raises pitch by about 55 cents.

Direction and drift check

Bring an incoming 124 BPM track up to 128 BPM

Set Playing BPM to 128 and Incoming BPM to 124. The incoming deck needs +3.226%. Reversing the task needs -3.125%, because the original tempo in the denominator changes.

  1. Apply the percentage to the incoming deck. A ±6% range can reach this match. With Key Lock off, linked playback also raises pitch by about 54.96 cents. With Key Lock on, the tempo ratio is unchanged but pitch-preserving processing is a separate step.
  2. Distinguish drift from an offset. If the decks actually play at 128 and 127.8 BPM for 60 seconds, their beat counts differ by 0.2 beat, equivalent to 93.75 ms at 128 BPM. A nudge can correct the current offset, but a persistent speed mismatch continues to accumulate.
  3. Check the grid before trusting Sync. Use the beatgrid troubleshooting guide to distinguish a wrong first downbeat from a wrong grid tempo. Beatmatching alone does not line up phrases; check your transition length in bars as well.
Deck-change reference

DJ beatmatching percentage examples

Direction matters: matching an incoming 124 BPM track to 128 BPM requires a different percentage from matching 128 BPM down to 124 BPM. The required adjustment always applies to the incoming deck in this calculator.

Incoming-deck pitch adjustments

Example incoming-deck speed adjustments and pitch changes when matching common track tempos
PlayingIncomingDeck adjustmentPitch without Key Lock
120 BPM118 BPM+1.695%+29.10 cents
128 BPM124 BPM+3.226%+54.96 cents
124 BPM128 BPM−3.125%−54.96 cents
130 BPM128 BPM+1.563%+26.84 cents
Quick answers

Frequently asked questions

How much should I move the pitch fader?

Use the required incoming-deck percentage. A positive result means speed the incoming track up; a negative result means slow it down.

Why does changing BPM change the key?

Traditional varispeed links playback speed and pitch. Enable Key Lock or Master Tempo if you want to change BPM while preserving the original musical key.

What if the required percentage is outside my deck range?

Select a wider tempo range, choose a closer track, or check whether the tempos make sense as a half-time or double-time pair.