beatdelay

TEMPO → NOTE LENGTH → DELAY TIME

A note length,
in milliseconds.

Set your tempo and what counts as one beat. Convert a straight, dotted or triplet note into a clear timing value.

Free browser-local arithmetic. No audio, uploads or account.

ONE REFERENCE BEAT

01 / DEFINE YOUR TEMPO

Start with the beat.

Tempo reference

BPM counts the selected reference beat per minute. Keeping the BPM number fixed and changing this beat changes the musical timing.

Target note duration

A triplet means three of this note in the time of two straight notes of the same value. One dot adds half the straight duration.

Result display

Changing the display unit keeps the tempo and exact duration unchanged.

02 / YOUR TIMING VALUE

Quarter note

A FRACTION MAKES THE DIFFERENCE

An eighth-note triplet
is exactly one third
of a quarter beat.

At 120 quarter-note BPM, the reference beat lasts 500 ms. A straight eighth lasts 250 ms. Multiplying that eighth by 2/3 gives exactly 500/3 ms, approximately 166.666666667 ms.

The calculation keeps that fraction intact. It does not substitute a rounded 67% multiplier or make a claim about a device’s setting range.

Follow the timing derivation and examples →