BPM to MS Calculator
Dial in perfect time-based effects with this BPM to MS Calculator. Calculate exact milliseconds for delay times, reverb pre-delay, compressor release settings, and LFO modulation rates to keep your mix tight and phase-coherent.
How to Convert BPM to Milliseconds for Delay
To convert BPM to milliseconds for delay effects, divide 60,000 by your song tempo. This calculation translates musical beats into precise time intervals. Audio engineers rely on this conversion whenever plugins or analog hardware lack automatic DAW tempo sync.
Setting your delay and spatial processors to tempo-synced milliseconds prevents muddy reflections and eliminates phase clashing between drums, basslines, and vocals.
The Milliseconds Per Beat Formula
Because 1 minute equals 60 seconds (60,000 milliseconds), a delay time calculator BPM formula starts with a simple baseline calculation:
Quarter Note (ms) = 60,000 / BPMStep-by-Step Calculation Example (120 BPM):
- Quarter note (1/4): 60,000 / 120 = 500 ms
- Eighth note (1/8): 500 / 2 = 250 ms
- Dotted eighth note (1/8d): 250 × 1.5 = 375 ms
- Eighth note triplet (1/8t): 500 × (2/3) = 166.67 ms
Note Division Modifiers:
- Whole Note (1/1):
(60,000 / BPM) × 4 - Half Note (1/2):
(60,000 / BPM) × 2 - Sixteenth Note (1/16):
(60,000 / BPM) / 4 - Dotted Values (1.5x): Multiply standard note duration by
1.5 - Triplet Values (2/3x): Multiply standard note duration by
0.6667
BPM to Milliseconds Chart for Music Producers & Engineers
1. Dotted Eighth Delay Time Calculator Use
A dotted eighth delay creates rhythmic bounce in rock guitars, synth leads, and pop vocals. At 128 BPM, a quarter note is 468.75 ms, making your dotted eighth delay exactly 351.56 ms.
2. Reverb Pre-Delay Time
Setting reverb pre-delay to a 1/32nd or 1/64th note separates your dry vocal transient from the reverb wash. This preserves vocal clarity while providing depth.
3. LFO Rate in Hz vs. MS
To sync tremolo, auto-pan, or filter sweeps to song tempo, convert millisecond intervals to frequency: Hz = 1,000 / Duration in ms. A 500 ms quarter note equals a 2.0 Hz LFO rate.
4. Tempo-Synced Delay on Outboard Gear
Vintage rack gear like the Roland SDE-3000 or Yamaha SPX90 requires exact millisecond input. Calculating your timings beforehand ensures outboard hardware tracks your session tempo.
Frequently Asked Questions
How do you convert BPM to ms?
Divide 60,000 by your track BPM (60,000 / BPM). This yields the exact millisecond duration of one quarter note. Multiply or divide this number to find eighth notes, sixteenth notes, dotted rhythms, or triplets.
What delay time should I use for 120 BPM?
For 120 BPM, standard delay times include: 500 ms for a quarter note (1/4), 375 ms for a dotted eighth note (1/8d), 250 ms for an eighth note (1/8), and 125 ms for a sixteenth note (1/16).
How do I sync delay to tempo in a DAW?
Enable the tempo sync or note-lock switch inside your delay plugin to bind it directly to your DAW session grid. If you are using analog hardware or non-synced plugins, use the 60,000 / BPM formula to dial in exact millisecond settings manually.
What is the formula for BPM to milliseconds?
The formula is: Quarter Note (ms) = 60,000 / BPM. For dotted notes, multiply that duration by 1.5. For triplet divisions, multiply that duration by 0.6667 (or 2/3).
BPM to MS Calculator
Quarter Note (1/4) Delay Time
| Note | Standard | Dotted | Triplet |
|---|---|---|---|
| 1/1 | 2000.0 ms | 3000.0 ms | 1333.3 ms |
| 1/2 | 1000.0 ms | 1500.0 ms | 666.7 ms |
| 1/4 | 500.0 ms | 750.0 ms | 333.3 ms |
| 1/8 | 250.0 ms | 375.0 ms | 166.7 ms |
| 1/16 | 125.0 ms | 187.5 ms | 83.3 ms |
| 1/32 | 62.5 ms | 93.8 ms | 41.7 ms |
| 1/64 | 31.3 ms | 46.9 ms | 20.8 ms |
* Delay and pre-delay timings are calculated assuming standard 4/4 meter. Fine-tune milliseconds to fit your audio plugin's swing and groove settings.
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