Tap BPM
Calculate BPM of live music or audio instantly by tapping along to the beat.
BPM ↔ Milliseconds Calculator
Convert beats-per-minute (BPM) into precise milliseconds and LFO frequencies (Hz).
Calculate Timing from BPM
Reverse: Milliseconds to BPM
Closest 1/4 note BPM
120 BPM
Closest 1/8 note BPM
60 BPM
Closest 1/16 note BPM
30 BPM
Time Subdivision Reference (at 120 BPM)
| Note division | Straight (ms) | Dotted (ms) | Triplet (ms) | LFO Freq (Hz) |
|---|
Triplets occur when 3 notes fill the space of 2. Dotted notes add half the note's original value (1.5x duration). LFO Frequency (Hz) represents beats per second equivalent ratios.
Setting Temporal Subdivisions in Your DAW
Convert beats per minute into milliseconds subdivisions for envelopes, automation, and LFO modulators.
Calculations are built upon standard acoustic metrics mapping 60,000 milliseconds in a single minute:
- Standard Beat: The length of a single quarter (1/4) note in milliseconds is calculated using: t = 60,000 / BPM.
- Dotted Modifier: Dotted divisions lengthen decay times by 1.5x. For example, a dotted 1/8 note equals a standard 1/8 note duration plus a 1/16 note duration.
- Triplet Modifier: Triplets speed up rates to fit 3 events inside the duration of 2 (0.667x duration).
- LFO Frequency (Hz): Converting millisecond notes to cycles per second (Hertz) helps you set exact LFO sweep speeds on synthesizers that don't support BPM sync. Calculated as f = 1000 / duration_ms.
Frequently Asked Questions
How is pre-delay computed?
DJs and producers use time milliseconds to match LFO trigger cycles, reverb envelopes decay lengths, and compression gate timings perfectly to the song tempo.