BPM to Delay Time Calculator
Convert any tempo into millisecond delay and reverb times, synced to the beat.
Use this free BPM to delay time calculator to sync your delay pedal, plugin or reverb pre-delay perfectly to the tempo of your track. Enter the BPM and instantly see the millisecond value for every common note division — whole, half, quarter, eighth, sixteenth and thirty-second notes — plus their dotted and triplet variants.
Tempo-synced delay is a staple technique in music production and live sound: instead of guessing a delay time in milliseconds, producers calculate the exact value that lines up with the song's rhythm. This keeps echoes, slapback and ambience locked to the groove instead of clashing with it.
Frequently Asked Questions
What is a BPM to delay time calculator?
It is a tool that converts a song's tempo (beats per minute) into millisecond values for delay and reverb effects, so the repeats or reflections land exactly on the beat instead of drifting out of time.
How do I calculate delay time from BPM?
The formula for a quarter note is 60000 ÷ BPM. For example, at 120 BPM a quarter note delay is 60000 ÷ 120 = 500 ms. Other note values are simple fractions or multiples of that number.
What is the difference between dotted and triplet delay?
A dotted note is 1.5× the length of the straight note (adds half its value again), while a triplet is 2/3 the length (three notes fit in the space of two). Dotted eighth delay is a classic U2-style echo; triplet delay creates a bouncier, syncopated feel.
Why do producers sync delay to tempo?
Untimed delay repeats can clash with the rhythm and muddy the mix. A tempo-synced delay blends naturally with the track because every repeat lands on a musically meaningful subdivision of the beat.
What delay time works best for vocals?
Dotted eighth or quarter note delays are common starting points for vocals — they add space and depth without competing with the lead melody. Shorter sixteenth-note delays work well for subtle thickening.
How do I set delay in milliseconds on my DAW or pedal?
Most delay plugins and pedals have a manual ms mode. Simply read the value from this calculator for the note division you want and type it into your delay's time parameter.
What is a quarter note delay?
A quarter note delay repeats exactly once per beat. At 120 BPM that is every 500 ms — the same interval as a metronome click at that tempo.
Can I use this for reverb pre-delay too?
Yes. Reverb pre-delay is often set to a short subdivision like a sixteenth or thirty-second note so the reverb tail starts just after the initial transient, keeping the mix clear while still sounding cohesive with the tempo.
What BPM range does this calculator support?
It supports any tempo from 20 to 300 BPM, covering everything from slow ballads to fast drum and bass or hardcore tracks.
Why does dotted eighth delay sound different from a straight eighth?
A straight eighth note delay repeats twice per beat evenly. A dotted eighth is 1.5× longer, so the repeats fall slightly off the main pulse, creating the syncopated, rolling echo effect popularized in rock and pop production.