BPM to Delay Time Calculator

Quick answer

The BPM calculator converts a song’s tempo into delay and reverb times in milliseconds for quarter, eighth, sixteenth, dotted and triplet notes, so effects sit in time with the music.

BPM
Quarter note
— ms
Eighth note
— ms
Sixteenth note
— ms
Dotted eighth
— ms
Quarter triplet
— ms
One bar (4/4)
— ms

Delay set to note values locks echoes to the beat; dotted eighths are a classic guitar effect.

How to use the BPM to Delay Time Calculator

  1. Tempo
  2. Want to work backwards? Type a value into Quarter note and Tempo is calculated for you.

Results update as you type, and every field accepts the units shown in its menu.

How it works

One beat lasts 60,000 ÷ BPM milliseconds; other note values scale from that.

What each result means

  • Quarter note = 60000÷[Tempo]
  • Eighth note = 30000÷[Tempo]
  • Sixteenth note = 15000÷[Tempo]
  • Dotted eighth = 45000÷[Tempo]
  • Quarter triplet = 40000÷[Tempo]
  • One bar (4/4) = 240000÷[Tempo]

Example values

How the main result changes when Tempo changes and everything else stays at the example values above:

Tempo (BPM) Quarter note (ms)
60 1,000
90 666.7
120 500
150 400
180 333.3
240 250

Formula

Quarter note (ms) = 60,000 ÷ BPM

Worked example

Inputs — Tempo: 120 BPM.
Results — Quarter note = 500 ms; Eighth note = 250 ms; Sixteenth note = 125 ms; Dotted eighth = 375 ms; Quarter triplet = 333.3 ms; One bar (4/4) = 2,000 ms.

Frequently asked questions

How do I find a song’s BPM?

Tap along with a tap-tempo tool or count beats in 15 seconds and multiply by 4.

Is pre-delay tied to tempo too?

Often; short note values such as 1/64 work well.

What formula does the BPM to Delay Time Calculator use?

Quarter note (ms) = 60,000 ÷ BPM.

Can I work backwards from the result?

Yes. Type the result you want into Quarter note and the calculator finds the matching tempo.

Cite this calculator

Speedy Calculator. (2026). BPM to Delay Time Calculator. Speedy Calculator. https://speedycalculator.com/calculators/other/bpm-delay/