171 BPM in Milliseconds: Delay Times and Note Lengths
At 171 BPM one beat (a quarter note) lasts 350.877 ms and one bar of 4/4 lasts 1.404 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.
171 BPM at a glance
- One beat at 171 BPM lasts about 350.88 ms (60,000 divided by 171), an eighth note about 175.44 ms and a dotted eighth about 263.16 ms.
- A beat here is not a whole number of milliseconds. The nearest tempo where it is: 160 BPM, with 375 ms per beat.
- A beat is 15,473.684 samples at 44.1 kHz and 16,842.105 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 5.614 seconds, and 3 minutes of music at this tempo holds 128.25 bars of 4/4.
- Going from 171 to 172 BPM shortens each beat by 2.04 ms, about 0.58% of the beat.
- An LFO synced to quarter notes runs at 2.85 Hz; synced to whole bars of 4/4 it runs at 0.7125 Hz.
Delay times at 171 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) | 1,403.51 ms | 2,105.26 ms | 935.67 ms |
| Half note (1/2) | 701.75 ms | 1,052.63 ms | 467.84 ms |
| Quarter note (1/4) | 350.88 ms | 526.32 ms | 233.92 ms |
| Eighth note (1/8) | 175.44 ms | 263.16 ms | 116.96 ms |
| Sixteenth note (1/16) | 87.72 ms | 131.58 ms | 58.48 ms |
| 1/32 note | 43.86 ms | 65.79 ms | 29.24 ms |
| 1/64 note | 21.93 ms | 32.89 ms | 14.62 ms |
171 BPM in Hz for LFOs
The rate that repeats once per note, for an LFO, tremolo or auto pan synced to 171 BPM. Rounded to 3 decimals.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole note (1/1) | 0.713 Hz | 0.475 Hz | 1.069 Hz |
| Half note (1/2) | 1.425 Hz | 0.95 Hz | 2.138 Hz |
| Quarter note (1/4) | 2.85 Hz | 1.9 Hz | 4.275 Hz |
| Eighth note (1/8) | 5.7 Hz | 3.8 Hz | 8.55 Hz |
| Sixteenth note (1/16) | 11.4 Hz | 7.6 Hz | 17.1 Hz |
| 1/32 note | 22.8 Hz | 15.2 Hz | 34.2 Hz |
| 1/64 note | 45.6 Hz | 30.4 Hz | 68.4 Hz |
Bar lengths at 171 BPM
| 1 bar of 4/4 | 1.404 s |
| 2 bars of 4/4 | 2.807 s |
| 4 bars of 4/4 | 5.614 s |
| 8 bars of 4/4 | 11.228 s |
| 16 bars of 4/4 | 22.456 s |
| 32 bars of 4/4 | 44.912 s |
| 1 bar of 3/4 | 1.053 s |
| 1 bar of 6/8 | 1.053 s |
| 1 bar of 7/8 | 1.228 s |
| 1 bar of 5/4 | 1.754 s |
Samples per beat at 171 BPM
| Rate | Per beat | Per 4/4 bar |
|---|---|---|
| 44.1 kHz | 15,473.684 | 61,894.737 |
| 48 kHz | 16,842.105 | 67,368.421 |
| 96 kHz | 33,684.211 | 134,736.842 |
Sample rate times 60, divided by 171.
What music is 171 BPM?
Very fast (160 to 200 BPM). This is a very fast tempo. Producers often program and feel music this fast at half time as well, so a pattern can be written on a slower grid and still drive at full speed.
Typical tempo ranges that include 171 BPM: Drum and bass, Punk, Hardcore techno and gabber.
Half time: 85.5 BPM, in the typical range of Reggae, R&B, Downtempo and trip hop, Lofi hip hop, Hip hop, Reggaeton. Double time: 342 BPM, faster than the genre ranges listed here.
A track can be written at one tempo and felt at the other, so a song at 171 BPM may be counted as 85.5 or 342 in a DAW or DJ software. Ranges are typical only; plenty of songs sit outside them.
Work at 171 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 171 BPM
How many milliseconds is a beat at 171 BPM?
A quarter note beat at 171 BPM lasts about 350.88 ms, which is 60,000 divided by 171. An eighth note is about 175.44 ms and a sixteenth note is about 87.72 ms.
What delay time should I use at 171 BPM?
For a quarter note echo set about 350.88 ms, for a dotted eighth set about 263.16 ms and for an eighth note triplet set about 116.96 ms. If your delay has a tempo sync mode, picking the note value there gives the same timing.
How long is one bar at 171 BPM?
One bar of 4/4 at 171 BPM lasts about 1.404 seconds, so 8 bars take about 11.228 seconds and 16 bars take about 22.456 seconds. A bar of 3/4 lasts about 1.053 seconds.
Is 171 BPM fast or slow?
Very fast (160 to 200 BPM). Typical ranges that include 171 BPM: Drum and bass, Punk, Hardcore techno and gabber. Half time is 85.5 BPM and double time is 342 BPM.