BPM to Milliseconds (ms) & Hz Calculator

Convert beats per minute to milliseconds and Hertz instantly. Enter your track tempo to get exact delay times, LFO rates, and vocal reverb pre-delay settings for every note value — straight, dotted, and triplet.

1/4 NOTE DELAY
500.0 ms
1/4 LFO RATE (HZ)
2.00 Hz

Don't know your tempo yet? Find it first with the Tap BPM Counter, then enter it here.

Note ValueStraight (ms / Hz)Dotted 1.5x (ms)Triplet 0.667x (ms)

How to Convert BPM to Milliseconds

One minute contains exactly 60,000 milliseconds. To find the length of a single quarter note in milliseconds, divide 60,000 by your song's BPM: Quarter Note (ms) = 60,000 ÷ BPM. At 120 BPM: 60,000 ÷ 120 = 500 ms. Every other note value is a multiple or fraction of that: half note is 2x, eighth note is 1/2, sixteenth is 1/4. Dotted notes multiply by 1.5, triplet notes multiply by 2/3.

Vocal reverb pre-delay: the 1/64 note rule

Set reverb pre-delay to a 1/64 or 1/32 note (typically 15 to 45 ms) so the wet reverb tail does not cover the first consonant of the dry vocal. At 120 BPM, 1/64 is 31.3 ms and 1/32 is 62.5 ms.