Enter your tempo to get delay and reverb times for every note value in milliseconds.
| Note | Normal | Dotted | Triplet |
|---|---|---|---|
| 1/1 Whole | 2000.0 | 3000.0 | 1333.3 |
| 1/2 Half | 1000.0 | 1500.0 | 666.7 |
| 1/4 Quarter | 500.0 | 750.0 | 333.3 |
| 1/8 Eighth | 250.0 | 375.0 | 166.7 |
| 1/16 Sixteenth | 125.0 | 187.5 | 83.3 |
| 1/32 Thirty-second | 62.5 | 93.8 | 41.7 |
Set delay, reverb pre-delay and LFO times to match your tempo. Dotted and triplet columns give classic rhythmic echoes.
This delay time calculator converts your BPM into exact note times using one rule from audio engineering: a single beat lasts 60000 ÷ BPM milliseconds. At 120 BPM a quarter note lands on 500.0 ms and a dotted eighth on 375.0 ms. It doubles as a reverb time calculator, the same figures set your echo, your reverb pre-delay, and your reverb time. Read every value as straight, dotted, and triplet, then switch to Hz for tempo-synced LFOs. Each figure is computed in your browser, nothing is uploaded.
Match any echo or reverb to your tempo in three quick steps.
Type the BPM of your project, or tap it out first with our free BPM tapper. The calculator accepts 20 to 300 BPM.
Each row is a note value; the columns give straight, dotted (×1.5), and triplet (×2/3) times. A 1/8 at 120 BPM is 250.0 ms.
Copy the millisecond value into your delay or reverb pre-delay, using it as a reverb time calculator too, or switch to Hz for LFO rates.
Every figure in the delay time calculator comes straight from the math, and so do the reverb times in the reverb time calculator, so everything stays on-grid.
A dotted 1/8 is 1.5× the straight time, 375.0 ms at 120 BPM, the wide off-beat echo heard on countless guitar and synth lines.
Triplet times are 2/3 of the straight value (166.7 ms for a 1/8 at 120 BPM), adding a rolling, shuffled feel against straight rhythms.
Set a note-length pre-delay, a 1/16 is 125.0 ms at 120 BPM, so the reverb blooms after the transient instead of smearing it. As a reverb time calculator it also gives the full reverb time.
Switch any time to Hertz (1000 ÷ ms) to set LFOs, tremolo, and auto-filter rates in time with the song.
Anyone working in a DAW who reaches for a delay time calculator or reverb time calculator to make echo, reverb, and modulation breathe with the tempo.
Lock echoes to the grid across the whole arrangement.
Set tempo-synced delay and reverb pre-delay by ear and by number.
Dial dotted-eighth times into pedals and amp sims.
Time LFOs, arps, and echoes to the beat in Hz.
Add triplet throws and slap-back on drums and vocals.
Place vocal slap and pre-delay so they sit in the rhythm.
Set delay pedals to the set tempo before the show.
Build rhythmic textures with note-locked echoes.
Learn how tempo, note values, and milliseconds connect.
Skip the guesswork and the mental math, get the right time the first time.
Every delay time is computed to 0.1 ms from 60000 ÷ BPM, so echoes land on the beat instead of drifting.
All 18 delay and reverb times recalculate the moment you change the tempo in the reverb time calculator, no network round-trip, no upload, no waiting.
The numbers are universal, any DAW, any plugin, any delay pedal uses the same milliseconds, so the delay time calculator and the reverb time calculator both just work.
“Dotted-eighth on the vocal, pre-delay on the reverb, I grab both numbers here in seconds and the mix just opens up.”
“Switching to Hz for my LFOs was the feature I didn’t know I needed. Everything modulates in time now.”
“I set my pedal to the dotted-eighth time before every gig. Takes ten seconds and sounds huge.”
Tap out the BPM of any track with our free Tap BPM tool, then come back to the delay and reverb time calculator and sync every time, or turn your idea into a finished song.
