Delay and Reverb Time Calculator

Your details

The tempo of your track in beats per minute (BPM). Quarter note = one beat.
BPM
The rhythmic subdivision of the delay you want to calculate.
Straight is the standard note value. Dotted adds half its length again (x1.5). Triplet fits three notes into the space of two (x2/3).
Preset reverb sizes with typical pre-delay and decay times locked to your BPM. Hall is the longest, Tight is shortest.
Delay time
500ms

Delay time in milliseconds for the chosen note division and variation

LFO / frequency equivalent2Hz
Quarter note (1 beat)500ms
Reverb pre-delay12ms
Reverb decay (RT60)2,000ms
Total reverb time2,012ms
Selected delay500
Reverb pre-delay12
Reverb decay2,000

1/4 straight delay at 120 BPM = 500.00 ms

  • At 120 BPM a straight 1/4 delay is 500.00 ms - enter this into your plugin's delay time field.
  • The Hz equivalent (2.0000 Hz) sets your LFO rate to pulse in perfect time with the delay.
  • The Large Room preset uses a 12 ms pre-delay and a 2000 ms decay, keeping the reverb tail musically in step with your tempo.

Next stepCopy the millisecond value directly into your DAW plugin, hardware delay, or reverb unit. For tempo-synced plugins, confirm BPM sync is enabled in the plugin so values stay locked even when project tempo changes.

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