64 BPM in Milliseconds: Delay Times and Note Lengths
At 64 BPM one beat (a quarter note) lasts 937.5 ms and one bar of 4/4 lasts 3.75 seconds. Below are the delay times for every note value, the same notes in Hz, bar and phrase lengths, samples per beat and the genres that typically sit at this tempo.
64 BPM at a glance
- One beat at 64 BPM lasts 937.5 ms (60,000 divided by 64), an eighth note 468.75 ms and a dotted eighth about 703.13 ms.
- A beat here is not a whole number of milliseconds. The nearest tempo where it is: 60 BPM, with 1,000 ms per beat.
- At 48 kHz a beat is exactly 45,000 samples, while at 44.1 kHz it is 41,343.75 samples, so a loop cut on the beat lands on a whole sample only at 48 kHz.
- A 4 bar phrase in 4/4 takes 15 seconds, and 3 minutes of music at this tempo holds 48 bars of 4/4.
- Going from 64 to 65 BPM shortens each beat by 14.423 ms, about 1.54% of the beat.
- An LFO synced to quarter notes runs at about 1.067 Hz; synced to whole bars of 4/4 it runs at about 0.2667 Hz.
Delay times at 64 BPM
Milliseconds for each note value. Dotted notes are 1.5 times as long, triplets 2/3 as long. Rounded to 2 decimals.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole note (1/1) | 3,750 ms | 5,625 ms | 2,500 ms |
| Half note (1/2) | 1,875 ms | 2,812.5 ms | 1,250 ms |
| Quarter note (1/4) | 937.5 ms | 1,406.25 ms | 625 ms |
| Eighth note (1/8) | 468.75 ms | 703.13 ms | 312.5 ms |
| Sixteenth note (1/16) | 234.38 ms | 351.56 ms | 156.25 ms |
| 1/32 note | 117.19 ms | 175.78 ms | 78.13 ms |
| 1/64 note | 58.59 ms | 87.89 ms | 39.06 ms |
64 BPM in Hz for LFOs
The rate that repeats once per note, for an LFO, tremolo or auto pan synced to 64 BPM. Rounded to 3 decimals.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole note (1/1) | 0.267 Hz | 0.178 Hz | 0.4 Hz |
| Half note (1/2) | 0.533 Hz | 0.356 Hz | 0.8 Hz |
| Quarter note (1/4) | 1.067 Hz | 0.711 Hz | 1.6 Hz |
| Eighth note (1/8) | 2.133 Hz | 1.422 Hz | 3.2 Hz |
| Sixteenth note (1/16) | 4.267 Hz | 2.844 Hz | 6.4 Hz |
| 1/32 note | 8.533 Hz | 5.689 Hz | 12.8 Hz |
| 1/64 note | 17.067 Hz | 11.378 Hz | 25.6 Hz |
Bar lengths at 64 BPM
| 1 bar of 4/4 | 3.75 s |
| 2 bars of 4/4 | 7.5 s |
| 4 bars of 4/4 | 15 s |
| 8 bars of 4/4 | 30 s |
| 16 bars of 4/4 | 60 s |
| 32 bars of 4/4 | 120 s |
| 1 bar of 3/4 | 2.813 s |
| 1 bar of 6/8 | 2.813 s |
| 1 bar of 7/8 | 3.281 s |
| 1 bar of 5/4 | 4.688 s |
Samples per beat at 64 BPM
| Rate | Per beat | Per 4/4 bar |
|---|---|---|
| 44.1 kHz | 41,343.75 | 165,375 |
| 48 kHz | 45,000 | 180,000 |
| 96 kHz | 90,000 | 360,000 |
Sample rate times 60, divided by 64.
What music is 64 BPM?
Slow (60 to 79 BPM). This is a slow tempo. Slow songs, ballads and laid back grooves live here, and a long note or a long delay tail has plenty of room. Because each beat is long, small timing differences are easy to hear, so slow tracks reward a tight, deliberate groove.
Typical tempo ranges that include 64 BPM: Ballads, Reggae, R&B.
Half time: 32 BPM, slower than the genre ranges listed here. Double time: 128 BPM, in the typical range of Pop, Rock, Disco and nu disco, House, Techno, Trance.
A track can be written at one tempo and felt at the other, so a song at 64 BPM may be counted as 32 or 128 in a DAW or DJ software. Ranges are typical only; plenty of songs sit outside them.
Work at 64 BPM
The BPM and Delay Time Calculator does this math for any tempo, including decimals, with tap tempo and milliseconds back to BPM. All free, in your browser.
Nearby tempos
Questions about 64 BPM
How many milliseconds is a beat at 64 BPM?
A quarter note beat at 64 BPM lasts 937.5 ms, which is 60,000 divided by 64. An eighth note is 468.75 ms and a sixteenth note is about 234.38 ms.
What delay time should I use at 64 BPM?
For a quarter note echo set 937.5 ms, for a dotted eighth set about 703.13 ms and for an eighth note triplet set 312.5 ms. If your delay has a tempo sync mode, picking the note value there gives the same timing.
How long is one bar at 64 BPM?
One bar of 4/4 at 64 BPM lasts 3.75 seconds, so 8 bars take 30 seconds and 16 bars take 60 seconds. A bar of 3/4 lasts about 2.813 seconds.
Is 64 BPM fast or slow?
Slow (60 to 79 BPM). Typical ranges that include 64 BPM: Ballads, Reggae, R&B. Half time is 32 BPM and double time is 128 BPM.