139 BPM
139 beats per minute is one beat every 431.65 ms. Below: bar and phrase lengths, delay and reverb times, LFO rates, the genres that use this tempo, and the pitch change needed to mix in from nearby tempos. Start the metronome or tap along to a track to check it is really 139.
Updated 2026-10-17
139 BPM
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Beat, bar and phrase lengths at 139 BPM
At 139 BPM one beat lasts 431.65 ms and a 4/4 bar lasts 1.727 s. The beat is not a whole number of milliseconds, so round to the nearest 0.1 ms when you type times in by hand, or use your plugin's tempo sync. That is 2.317 beats per second, or 34.75 bars of 4/4 per minute.
Dance tracks are usually arranged in 8-, 16- and 32-bar phrases. At 139 BPM a 16-bar phrase takes 27.63 s and a 32-bar intro or outro takes 55.25 s. That is 4.37 s shorter than the same 16 bars at 120 BPM. A six-minute track at this tempo contains about 209 bars.
| Length | Time | Milliseconds |
|---|---|---|
| 1 beat | 0.432 s | 431.65 ms |
| 1 bar (4 beats) | 1.727 s | 1726.62 ms |
| 4 bars | 6.906 s | 6906.47 ms |
| 8 bars | 13.81 s | 13812.95 ms |
| 16 bars | 27.63 s | 27625.9 ms |
| 32 bars | 55.25 s | 55251.8 ms |
| 64 bars | 1:50.5 min | 110503.6 ms |
Delay times at 139 BPM
Straight values follow the beat; dotted values are 1.5 times as long and triplets are two-thirds as long. At 139 BPM the popular dotted-eighth delay is 323.74 ms and a quarter-note slapback is 431.65 ms. The Hz column is the matching rate for an LFO, tremolo or auto-pan synced to the straight note.
| Note | Straight | Dotted | Triplet | Rate (straight) |
|---|---|---|---|---|
| 1/1 (one 4/4 bar) | 1726.62 ms | 2589.93 ms | 1151.08 ms | 0.579 Hz |
| 1/2 | 863.31 ms | 1294.96 ms | 575.54 ms | 1.158 Hz |
| 1/4 (one beat) | 431.65 ms | 647.48 ms | 287.77 ms | 2.317 Hz |
| 1/8 | 215.83 ms | 323.74 ms | 143.88 ms | 4.633 Hz |
| 1/16 | 107.91 ms | 161.87 ms | 71.94 ms | 9.267 Hz |
| 1/32 | 53.96 ms | 80.94 ms | 35.97 ms | 18.533 Hz |
Reverb times at 139 BPM
A common way to keep a reverb in time is to tie its pre-delay to a short note value and let the tail fade within a longer one. At 139 BPM a 1/64-note pre-delay is 26.98 ms and a 1/32-note pre-delay is 53.96 ms.
The decay control on most reverbs is RT60, the time it takes the tail to fall by 60 dB, so the audible tail ends earlier than the number shown. Treat these values as starting points and adjust by ear.
| Reverb character | Pre-delay | Decay (RT60) |
|---|---|---|
| Tight room on drums | 26.98 ms | 431.65 ms |
| Medium plate on vocals | 53.96 ms | 863.31 ms |
| Large hall or pad wash | 53.96 ms | 1726.62 ms |
| Ambient tail over two bars | 107.91 ms | 3453.24 ms |
Genres at 139 BPM
139 BPM is in the up-tempo, high-energy range. It sits near the upper end of the UK garage/breakbeat range (125–140), in the middle of the techno range (125–150), in the middle of the trance range (128–145) and in the middle of the dubstep range (135–145).
Heard at half-time (69.5 BPM) it lines up with ambient/downtempo. A detector or a tag in your library may report either reading, so check by ear which one the drums suggest.
These ranges are common practice rather than rules: genre is decided by rhythm, sound and scene as much as by tempo, and plenty of tracks sit outside the usual numbers.
- UK garage/breakbeat: typically 125–140 BPM — shuffled and broken drums can make the count ambiguous.
- Techno: typically 125–150 BPM — from restrained 125 to fast, hard styles near 150.
- Trance: typically 128–145 BPM — a regular kick usually gives a clear pulse.
- Dubstep: typically 135–145 BPM — usually counted around 140 but felt at half-time, near 70.
Mixing into 139 BPM
To bring a track at another tempo up or down to 139 BPM, move its pitch fader by the percentage below. Without key lock the key moves too, by the number of semitones shown; about 6 % is one semitone, so changes beyond that are where key lock (master tempo) starts to matter.
A ±8 % pitch fader on a track at 139 BPM reaches 127.9–150.1 BPM; a ±16 % range reaches 116.8–161.2 BPM.
| Track tempo | Pitch change to reach 139 | Key shift without key lock |
|---|---|---|
| 133 BPM | +4.51 % | +0.76 st |
| 135 BPM | +2.96 % | +0.51 st |
| 137 BPM | +1.46 % | +0.25 st |
| 138 BPM | +0.72 % | +0.12 st |
| 140 BPM | −0.71 % | −0.12 st |
| 141 BPM | −1.42 % | −0.25 st |
| 143 BPM | −2.8 % | −0.49 st |
| 145 BPM | −4.14 % | −0.73 st |
Half-time, double-time and nearby tempos
Half-time of 139 BPM is 69.5 BPM and double-time is 278 BPM.
278 BPM is outside the 60–200 range of these pages; the half/double-time converter works with any value.
69.5 BPM falls between two whole tempos, so the nearest pages, 69 and 70 BPM, are linked instead.
Each 1 BPM step at this tempo changes the beat by about 3.08 ms, so neighbouring tempos are close enough to beatmatch with a small pitch move.
Frequently asked questions
- How many milliseconds is one beat at 139 BPM?
- One beat (a quarter note) at 139 BPM is 60,000 ÷ 139 = 431.65 ms. A 4/4 bar is four beats, 1726.62 ms.
- What is the dotted eighth delay time at 139 BPM?
- A dotted 1/8 delay at 139 BPM is 323.74 ms: an eighth note (215.83 ms) multiplied by 1.5. A straight quarter-note delay is 431.65 ms and a quarter-note triplet is 287.77 ms.
- What genre is 139 BPM?
- UK garage/breakbeat, techno, trance and dubstep commonly use 139 BPM. Genre ranges overlap, so the drum pattern and sound decide the style more than the number does.
- What is 139 BPM in Hz?
- 139 BPM is 2.3167 Hz when one cycle equals one beat. An LFO synced to one bar runs at 0.5792 Hz, and one synced to sixteenth notes at 9.267 Hz.