100 BPM in Milliseconds: Delay Times and Note Lengths
At 100 BPM one beat (a quarter note) lasts 600 ms and one bar of 4/4 lasts 2.4 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.
100 BPM at a glance
- One beat at 100 BPM lasts 600 ms (60,000 divided by 100), an eighth note 300 ms and a dotted eighth 450 ms.
- 100 BPM is one of the few tempos between 60 and 200 where a beat is a whole number of milliseconds, so quarter note delays need no rounding.
- At both 44.1 kHz and 48 kHz a beat is a whole number of samples (26,460 and 28,800), so loops cut on the beat line up exactly at either rate.
- A 4 bar phrase in 4/4 takes 9.6 seconds, and 3 minutes of music at this tempo holds 75 bars of 4/4.
- Going from 100 to 101 BPM shortens each beat by 5.941 ms, about 0.99% of the beat.
- An LFO synced to quarter notes runs at about 1.667 Hz; synced to whole bars of 4/4 it runs at about 0.4167 Hz.
Delay times at 100 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) | 2,400 ms | 3,600 ms | 1,600 ms |
| Half note (1/2) | 1,200 ms | 1,800 ms | 800 ms |
| Quarter note (1/4) | 600 ms | 900 ms | 400 ms |
| Eighth note (1/8) | 300 ms | 450 ms | 200 ms |
| Sixteenth note (1/16) | 150 ms | 225 ms | 100 ms |
| 1/32 note | 75 ms | 112.5 ms | 50 ms |
| 1/64 note | 37.5 ms | 56.25 ms | 25 ms |
100 BPM in Hz for LFOs
The rate that repeats once per note, for an LFO, tremolo or auto pan synced to 100 BPM. Rounded to 3 decimals.
| Note | Straight | Dotted | Triplet |
|---|---|---|---|
| Whole note (1/1) | 0.417 Hz | 0.278 Hz | 0.625 Hz |
| Half note (1/2) | 0.833 Hz | 0.556 Hz | 1.25 Hz |
| Quarter note (1/4) | 1.667 Hz | 1.111 Hz | 2.5 Hz |
| Eighth note (1/8) | 3.333 Hz | 2.222 Hz | 5 Hz |
| Sixteenth note (1/16) | 6.667 Hz | 4.444 Hz | 10 Hz |
| 1/32 note | 13.333 Hz | 8.889 Hz | 20 Hz |
| 1/64 note | 26.667 Hz | 17.778 Hz | 40 Hz |
Bar lengths at 100 BPM
| 1 bar of 4/4 | 2.4 s |
| 2 bars of 4/4 | 4.8 s |
| 4 bars of 4/4 | 9.6 s |
| 8 bars of 4/4 | 19.2 s |
| 16 bars of 4/4 | 38.4 s |
| 32 bars of 4/4 | 76.8 s |
| 1 bar of 3/4 | 1.8 s |
| 1 bar of 6/8 | 1.8 s |
| 1 bar of 7/8 | 2.1 s |
| 1 bar of 5/4 | 3 s |
Samples per beat at 100 BPM
| Rate | Per beat | Per 4/4 bar |
|---|---|---|
| 44.1 kHz | 26,460 | 105,840 |
| 48 kHz | 28,800 | 115,200 |
| 96 kHz | 57,600 | 230,400 |
Sample rate times 60, divided by 100.
What music is 100 BPM?
Mid tempo (100 to 119 BPM). This is a mid tempo, close to a brisk walking pace. Much pop, rock and dance pop lands somewhere in this range, which is quick enough to move to and slow enough for a vocal to breathe.
Typical tempo ranges that include 100 BPM: R&B, Downtempo and trip hop, Hip hop, Reggaeton, Afrobeats, Pop, Rock.
Half time: 50 BPM, slower than the genre ranges listed here. Double time: 200 BPM, in the typical range of Punk, Hardcore techno and gabber.
A track can be written at one tempo and felt at the other, so a song at 100 BPM may be counted as 50 or 200 in a DAW or DJ software. Ranges are typical only; plenty of songs sit outside them.
Work at 100 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 100 BPM
How many milliseconds is a beat at 100 BPM?
A quarter note beat at 100 BPM lasts 600 ms, which is 60,000 divided by 100. An eighth note is 300 ms and a sixteenth note is 150 ms.
What delay time should I use at 100 BPM?
For a quarter note echo set 600 ms, for a dotted eighth set 450 ms and for an eighth note triplet set 200 ms. If your delay has a tempo sync mode, picking the note value there gives the same timing.
How long is one bar at 100 BPM?
One bar of 4/4 at 100 BPM lasts 2.4 seconds, so 8 bars take 19.2 seconds and 16 bars take 38.4 seconds. A bar of 3/4 lasts 1.8 seconds.
Is 100 BPM fast or slow?
Mid tempo (100 to 119 BPM). Typical ranges that include 100 BPM: R&B, Downtempo and trip hop, Hip hop, Reggaeton, Afrobeats, Pop, Rock. Half time is 50 BPM and double time is 200 BPM.