How do you convert BPM to milliseconds?

One quarter-note beat equals 60000 divided by the BPM. At 120 BPM that is 60000 / 120 = 500 ms. Other note values scale from that beat: a half note is double, an eighth is half, a sixteenth is a quarter, and so on.

What is the delay time for 120 BPM?

A quarter note at 120 BPM is 500 ms, an eighth note is 250 ms and a sixteenth is 125 ms. Use those as your delay times to lock the echoes to the beat.

What are dotted and triplet times?

A dotted note lasts 1.5 times the straight value, giving a galloping feel popular for delays. A triplet lasts two-thirds of the straight value, fitting three notes in the space of two.

What is the Hz column for?

It is the rate of the note value in cycles per second (1000 ÷ milliseconds). It is handy for setting tempo-synced LFOs or tremolo by frequency instead of by time.

Which note values are shown?

Whole, half, quarter, eighth, sixteenth and thirty-second notes, each with straight, dotted and triplet timings, all derived from the quarter-note beat.

Should I use the dotted-eighth delay trick?

It is a classic effect: a dotted-eighth delay (1.5 × the eighth-note time) creates a syncopated, rhythmic echo. Read the dotted column next to the eighth-note row to get the exact ms value.

Is anything sent to a server?

No — every calculation runs locally in your browser.

BPM to Milliseconds Calculator

BPM to milliseconds — delay and note-length times

Producers sync delays, reverb pre-delay and LFOs to the tempo so effects sit in the groove instead of fighting it. This tool converts any BPM into millisecond times for every note value, including straight, dotted and triplet feels, plus the equivalent frequency in Hz.

How it works

Everything is derived from the length of one quarter-note beat:

beat (ms) = 60000 ÷ BPM

Each note value scales from that beat by a multiplier (whole = ×4, half = ×2, quarter = ×1, eighth = ×0.5, sixteenth = ×0.25, thirty-second = ×0.125). Dotted times are ×1.5 the straight value, triplets are ×2/3, and the Hz column is 1000 ÷ the straight milliseconds.

Example

At 120 BPM, beat = 60000 ÷ 120 = 500 ms:

Note value	Straight	Dotted	Triplet
Quarter (1 beat)	500 ms	750 ms	333.33 ms
Eighth	250 ms	375 ms	166.67 ms
Sixteenth	125 ms	187.5 ms	83.33 ms

Copy the value straight into your DAW or hardware unit — all in your browser.