Type a tempo — or tap one in — and get the delay, reverb and LFO times that lock to it, in milliseconds and hertz.

Tempo (BPM)

Tap four times to set the tempo

BPM to Delay Time @ 120 BPM

Note value	Straight	Dotted	Triplet	Hz
1/1 — whole	2000	3000	1333	0.50
1/2 — half	1000	1500	666.7	1.00
1/4 — quarter (the beat)	500.0	750.0	333.3	2.00
1/8 — eighth	250.0	375.0	166.7	4.00
1/16 — sixteenth	125.0	187.5	83.33	8.00
1/32	62.50	93.75	41.67	16.00
1/64	31.25	46.88	20.83	32.00

All times in milliseconds. Click any value to copy it.

Common uses

Slapback delay

1/16 straight

Dub / ping-pong delay

1/8 dotted

Wide stereo double

1/32 straight

Reverb pre-delay

1/32 to 1/16

Reverb tail

1/2 to one bar

How the numbers are worked out

One beat at 120 BPM lasts 60000 ÷ 120 milliseconds. Every other note value is that number halved or doubled: an eighth is half a beat, a sixteenth is a quarter of one, and so on.

A dotted note is one and a half times the straight value, and a triplet is two thirds of it. The hertz column is simply 1000 divided by the millisecond value — useful for setting an LFO or a tremolo in sync with the track.

Why sync a delay to the tempo

A delay set to a random time fights the groove. Set it to a note value and the repeats land on the grid, so the echo reinforces the rhythm instead of blurring it. Dotted eighths are the classic choice for a delay that feels wide without cluttering the beat.

More free tools

Tæl BPM Tap along to any song and read its tempo. Metronome Steady click from 20 to 300 BPM, with accents. BPM by Genre Typical tempo range for 60+ music genres. Tempo Markings Largo to Prestissimo, with BPM ranges. Click Counter Tally clicker that counts up and down. Click Speed Test Measure your clicks per second. BPM Game Guess the hidden tempo by ear.