66 BPM in Milliseconds: Delay Times and Note Lengths
At 66 BPM one beat (a quarter note) lasts 909.091 ms and one bar of 4/4 lasts 3.636 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.
66 BPM at a glance
- One beat at 66 BPM lasts about 909.09 ms (60,000 divided by 66), an eighth note about 454.55 ms and a dotted eighth about 681.82 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.
- A beat is 40,090.909 samples at 44.1 kHz and 43,636.364 samples at 48 kHz, neither a whole number, so sample accurate loop points round slightly at both rates.
- A 4 bar phrase in 4/4 takes about 14.545 seconds, and 3 minutes of music at this tempo holds 49.5 bars of 4/4.
- Going from 66 to 67 BPM shortens each beat by 13.569 ms, about 1.49% of the beat.
- An LFO synced to quarter notes runs at 1.1 Hz; synced to whole bars of 4/4 it runs at 0.275 Hz.
Delay times at 66 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) | 3,636.36 ms | 5,454.55 ms | 2,424.24 ms |
| Half note (1/2) | 1,818.18 ms | 2,727.27 ms | 1,212.12 ms |
| Quarter note (1/4) | 909.09 ms | 1,363.64 ms | 606.06 ms |
| Eighth note (1/8) | 454.55 ms | 681.82 ms | 303.03 ms |
| Sixteenth note (1/16) | 227.27 ms | 340.91 ms | 151.52 ms |
| 1/32 note | 113.64 ms | 170.45 ms | 75.76 ms |
| 1/64 note | 56.82 ms | 85.23 ms | 37.88 ms |
66 BPM in Hz for LFOs
The rate that repeats once per note, for an LFO, tremolo or auto pan synced to 66 BPM. Rounded to 3 decimals.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole note (1/1) | 0.275 Hz | 0.183 Hz | 0.413 Hz |
| Half note (1/2) | 0.55 Hz | 0.367 Hz | 0.825 Hz |
| Quarter note (1/4) | 1.1 Hz | 0.733 Hz | 1.65 Hz |
| Eighth note (1/8) | 2.2 Hz | 1.467 Hz | 3.3 Hz |
| Sixteenth note (1/16) | 4.4 Hz | 2.933 Hz | 6.6 Hz |
| 1/32 note | 8.8 Hz | 5.867 Hz | 13.2 Hz |
| 1/64 note | 17.6 Hz | 11.733 Hz | 26.4 Hz |
Bar lengths at 66 BPM
| 1 bar of 4/4 | 3.636 s |
| 2 bars of 4/4 | 7.273 s |
| 4 bars of 4/4 | 14.545 s |
| 8 bars of 4/4 | 29.091 s |
| 16 bars of 4/4 | 58.182 s |
| 32 bars of 4/4 | 116.364 s |
| 1 bar of 3/4 | 2.727 s |
| 1 bar of 6/8 | 2.727 s |
| 1 bar of 7/8 | 3.182 s |
| 1 bar of 5/4 | 4.545 s |
Samples per beat at 66 BPM
| Rate | Per beat | Per 4/4 bar |
|---|---|---|
| 44.1 kHz | 40,090.909 | 160,363.636 |
| 48 kHz | 43,636.364 | 174,545.455 |
| 96 kHz | 87,272.727 | 349,090.909 |
Sample rate times 60, divided by 66.
What music is 66 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 66 BPM: Ballads, Reggae, R&B.
Half time: 33 BPM, slower than the genre ranges listed here. Double time: 132 BPM, in the typical range of Rock, Techno, Trance, UK garage, Trap (often felt at half time).
A track can be written at one tempo and felt at the other, so a song at 66 BPM may be counted as 33 or 132 in a DAW or DJ software. Ranges are typical only; plenty of songs sit outside them.
Work at 66 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 66 BPM
How many milliseconds is a beat at 66 BPM?
A quarter note beat at 66 BPM lasts about 909.09 ms, which is 60,000 divided by 66. An eighth note is about 454.55 ms and a sixteenth note is about 227.27 ms.
What delay time should I use at 66 BPM?
For a quarter note echo set about 909.09 ms, for a dotted eighth set about 681.82 ms and for an eighth note triplet set about 303.03 ms. If your delay has a tempo sync mode, picking the note value there gives the same timing.
How long is one bar at 66 BPM?
One bar of 4/4 at 66 BPM lasts about 3.636 seconds, so 8 bars take about 29.091 seconds and 16 bars take about 58.182 seconds. A bar of 3/4 lasts about 2.727 seconds.
Is 66 BPM fast or slow?
Slow (60 to 79 BPM). Typical ranges that include 66 BPM: Ballads, Reggae, R&B. Half time is 33 BPM and double time is 132 BPM.