151 BPM
151 beats per minute is one beat every 397.35 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 151.
Updated 2026-10-17
151 BPM
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Beat, bar and phrase lengths at 151 BPM
At 151 BPM one beat lasts 397.35 ms and a 4/4 bar lasts 1.589 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 2.517 beats per second, or 37.75 bars of 4/4 per minute.
Dance tracks are usually arranged in 8-, 16- and 32-bar phrases. At 151 BPM a 16-bar phrase takes 25.43 s and a 32-bar intro or outro takes 50.86 s. That is 6.57 s shorter than the same 16 bars at 120 BPM. A six-minute track at this tempo contains about 227 bars.
| Length | Time | Milliseconds |
|---|---|---|
| 1 beat | 0.397 s | 397.35 ms |
| 1 bar (4 beats) | 1.589 s | 1589.4 ms |
| 4 bars | 6.358 s | 6357.62 ms |
| 8 bars | 12.72 s | 12715.23 ms |
| 16 bars | 25.43 s | 25430.46 ms |
| 32 bars | 50.86 s | 50860.93 ms |
| 64 bars | 1:41.7 min | 101721.85 ms |
Delay times at 151 BPM
Straight values follow the beat; dotted values are 1.5 times as long and triplets are two-thirds as long. At 151 BPM the popular dotted-eighth delay is 298.01 ms and a quarter-note slapback is 397.35 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) | 1589.4 ms | 2384.11 ms | 1059.6 ms | 0.629 Hz |
| 1/2 | 794.7 ms | 1192.05 ms | 529.8 ms | 1.258 Hz |
| 1/4 (one beat) | 397.35 ms | 596.03 ms | 264.9 ms | 2.517 Hz |
| 1/8 | 198.68 ms | 298.01 ms | 132.45 ms | 5.033 Hz |
| 1/16 | 99.34 ms | 149.01 ms | 66.23 ms | 10.067 Hz |
| 1/32 | 49.67 ms | 74.5 ms | 33.11 ms | 20.133 Hz |
Reverb times at 151 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 151 BPM a 1/64-note pre-delay is 24.83 ms and a 1/32-note pre-delay is 49.67 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 | 24.83 ms | 397.35 ms |
| Medium plate on vocals | 49.67 ms | 794.7 ms |
| Large hall or pad wash | 49.67 ms | 1589.4 ms |
| Ambient tail over two bars | 99.34 ms | 3178.81 ms |
Genres at 151 BPM
151 BPM is in the up-tempo, high-energy range. It sits in the middle of the hardstyle range (145–160).
Heard at half-time (75.5 BPM) it lines up with ambient/downtempo, hip-hop and reggae/dub. 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.
- Hardstyle: typically 145–160 BPM — most releases sit near 150.
Mixing into 151 BPM
To bring a track at another tempo up or down to 151 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 151 BPM reaches 138.9–163.1 BPM; a ±16 % range reaches 126.8–175.2 BPM.
| Track tempo | Pitch change to reach 151 | Key shift without key lock |
|---|---|---|
| 145 BPM | +4.14 % | +0.7 st |
| 147 BPM | +2.72 % | +0.46 st |
| 149 BPM | +1.34 % | +0.23 st |
| 150 BPM | +0.67 % | +0.12 st |
| 152 BPM | −0.66 % | −0.11 st |
| 153 BPM | −1.31 % | −0.23 st |
| 155 BPM | −2.58 % | −0.45 st |
| 157 BPM | −3.82 % | −0.67 st |
Half-time, double-time and nearby tempos
Half-time of 151 BPM is 75.5 BPM and double-time is 302 BPM.
302 BPM is outside the 60–200 range of these pages; the half/double-time converter works with any value.
75.5 BPM falls between two whole tempos, so the nearest pages, 75 and 76 BPM, are linked instead.
Each 1 BPM step at this tempo changes the beat by about 2.61 ms, so neighbouring tempos are close enough to beatmatch with a small pitch move.
Frequently asked questions
- How many milliseconds is one beat at 151 BPM?
- One beat (a quarter note) at 151 BPM is 60,000 ÷ 151 = 397.35 ms. A 4/4 bar is four beats, 1589.4 ms.
- What is the dotted eighth delay time at 151 BPM?
- A dotted 1/8 delay at 151 BPM is 298.01 ms: an eighth note (198.68 ms) multiplied by 1.5. A straight quarter-note delay is 397.35 ms and a quarter-note triplet is 264.9 ms.
- What genre is 151 BPM?
- Hardstyle commonly uses 151 BPM. Genre ranges overlap, so the drum pattern and sound decide the style more than the number does.
- What is 151 BPM in Hz?
- 151 BPM is 2.5167 Hz when one cycle equals one beat. An LFO synced to one bar runs at 0.6292 Hz, and one synced to sixteenth notes at 10.067 Hz.