How do you convert BPM to milliseconds?

Divide 60,000 (milliseconds in one minute) by the BPM to get the duration of one quarter note in milliseconds. For example, at 120 BPM: 60,000 / 120 = 500 ms per quarter note.

What is the formula for a dotted note?

A dotted note lasts 1.5 times its base note. So a dotted quarter note at 120 BPM = 500 ms x 1.5 = 750 ms.

How are triplet note durations calculated?

Triplets divide the base note into three equal parts where three fit in the space of two. The formula is (base note duration) x (2/3). At 120 BPM a quarter-note triplet = 500 x 2/3 ≈ 333 ms.

Why do producers need BPM-to-ms values?

Many delay and reverb units accept a time value in milliseconds rather than a BPM sync option. Entering the exact ms value for the note you want keeps effects locked to the song tempo.

What BPM range is supported?

This tool supports 1–999 BPM, covering everything from extreme slowcore to the fastest drum-and-bass and gabber tempos.

BPM to Milliseconds Calculator

Enter a BPM value and instantly get note durations in milliseconds for whole, half, quarter, eighth, sixteenth notes, and triplets.

Tempo Settings

BPM (Beats Per Minute)

Range: 1 – 999 BPM

Quick Presets

Quarter note at 120 BPM

500.00 ms

Note Duration Table

Click any value to copy

Standard Notes

Note	Milliseconds	Seconds

Dotted Notes (×1.5)

Note	Milliseconds	Seconds

Triplet Notes (×2/3)

Note	Milliseconds	Seconds

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Summary

This BPM to milliseconds calculator converts any tempo (beats per minute) into precise note durations in milliseconds. It covers all standard note values — whole, half, quarter, eighth, sixteenth, thirty-second — plus dotted and triplet variants. Audio producers use these values to sync delay, reverb, and LFO times to the project tempo for a tight, musical mix.

How it works

Enter your project BPM in the input field.
The calculator divides one minute (60,000 ms) by the BPM to get the quarter-note duration.
All other note values are derived by multiplying or dividing that base value.
Dotted notes are 1.5x their base note; triplets are 2/3 of their base note.
Click any value in the results table to copy it to the clipboard.

Use cases

Set delay time on a guitar pedal or DAW plugin to match song tempo.
Sync LFO speed to project BPM for rhythmic modulation effects.
Dial in reverb pre-delay for a tempo-accurate wash.
Calculate gate or tremolo timing for rhythmic chopping effects.
Match arpeggiator step length to exact note subdivisions.
Verify a tap-tempo reading against expected millisecond values.
Teach music theory students the relationship between tempo and note duration.
Set sidechain compressor release times for pumping effects on beat.

Frequently Asked Questions

Last updated: 2026-06-11 · Reviewed by Nham Vu