149 BPM
149 beats per minute is one beat every 402.68 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 149.
Updated 2026-10-17
149 BPM
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Beat, bar and phrase lengths at 149 BPM
At 149 BPM one beat lasts 402.68 ms and a 4/4 bar lasts 1.611 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 2.483 beats per second, or 37.25 bars of 4/4 per minute.
Dance tracks are usually arranged in 8-, 16- and 32-bar phrases. At 149 BPM a 16-bar phrase takes 25.77 s and a 32-bar intro or outro takes 51.54 s. That is 6.23 s shorter than the same 16 bars at 120 BPM. A six-minute track at this tempo contains about 224 bars.
| Length | Time | Milliseconds |
|---|---|---|
| 1 beat | 0.403 s | 402.68 ms |
| 1 bar (4 beats) | 1.611 s | 1610.74 ms |
| 4 bars | 6.443 s | 6442.95 ms |
| 8 bars | 12.89 s | 12885.91 ms |
| 16 bars | 25.77 s | 25771.81 ms |
| 32 bars | 51.54 s | 51543.62 ms |
| 64 bars | 1:43.1 min | 103087.25 ms |
Delay times at 149 BPM
Straight values follow the beat; dotted values are 1.5 times as long and triplets are two-thirds as long. At 149 BPM the popular dotted-eighth delay is 302.01 ms and a quarter-note slapback is 402.68 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) | 1610.74 ms | 2416.11 ms | 1073.83 ms | 0.621 Hz |
| 1/2 | 805.37 ms | 1208.05 ms | 536.91 ms | 1.242 Hz |
| 1/4 (one beat) | 402.68 ms | 604.03 ms | 268.46 ms | 2.483 Hz |
| 1/8 | 201.34 ms | 302.01 ms | 134.23 ms | 4.967 Hz |
| 1/16 | 100.67 ms | 151.01 ms | 67.11 ms | 9.933 Hz |
| 1/32 | 50.34 ms | 75.5 ms | 33.56 ms | 19.867 Hz |
Reverb times at 149 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 149 BPM a 1/64-note pre-delay is 25.17 ms and a 1/32-note pre-delay is 50.34 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 | 25.17 ms | 402.68 ms |
| Medium plate on vocals | 50.34 ms | 805.37 ms |
| Large hall or pad wash | 50.34 ms | 1610.74 ms |
| Ambient tail over two bars | 100.67 ms | 3221.48 ms |
Genres at 149 BPM
149 BPM is in the up-tempo, high-energy range. It sits near the upper end of the techno range (125–150) and near the low end of the hardstyle range (145–160).
Heard at half-time (74.5 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.
- Techno: typically 125–150 BPM — from restrained 125 to fast, hard styles near 150.
- Hardstyle: typically 145–160 BPM — most releases sit near 150.
Mixing into 149 BPM
To bring a track at another tempo up or down to 149 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 149 BPM reaches 137.1–160.9 BPM; a ±16 % range reaches 125.2–172.8 BPM.
| Track tempo | Pitch change to reach 149 | Key shift without key lock |
|---|---|---|
| 143 BPM | +4.2 % | +0.71 st |
| 145 BPM | +2.76 % | +0.47 st |
| 147 BPM | +1.36 % | +0.23 st |
| 148 BPM | +0.68 % | +0.12 st |
| 150 BPM | −0.67 % | −0.12 st |
| 151 BPM | −1.32 % | −0.23 st |
| 153 BPM | −2.61 % | −0.46 st |
| 155 BPM | −3.87 % | −0.68 st |
Half-time, double-time and nearby tempos
Half-time of 149 BPM is 74.5 BPM and double-time is 298 BPM.
298 BPM is outside the 60–200 range of these pages; the half/double-time converter works with any value.
74.5 BPM falls between two whole tempos, so the nearest pages, 74 and 75 BPM, are linked instead.
Each 1 BPM step at this tempo changes the beat by about 2.68 ms, so neighbouring tempos are close enough to beatmatch with a small pitch move.
Frequently asked questions
- How many milliseconds is one beat at 149 BPM?
- One beat (a quarter note) at 149 BPM is 60,000 ÷ 149 = 402.68 ms. A 4/4 bar is four beats, 1610.74 ms.
- What is the dotted eighth delay time at 149 BPM?
- A dotted 1/8 delay at 149 BPM is 302.01 ms: an eighth note (201.34 ms) multiplied by 1.5. A straight quarter-note delay is 402.68 ms and a quarter-note triplet is 268.46 ms.
- What genre is 149 BPM?
- Techno and hardstyle commonly use 149 BPM. Genre ranges overlap, so the drum pattern and sound decide the style more than the number does.
- What is 149 BPM in Hz?
- 149 BPM is 2.4833 Hz when one cycle equals one beat. An LFO synced to one bar runs at 0.6208 Hz, and one synced to sixteenth notes at 9.933 Hz.