How to Calculate Delay Time From BPM
Locking delay repeats to song tempo ensures echo trails blend harmoniously into the mix without causing rhythmic dissonance. Here is the step-by-step mathematical guide to calculating delay times in milliseconds.
The Core Delay Formula
To find the delay time for a quarter note beat, divide 60,000 (milliseconds in a minute) by your track BPM:
Quarter Note Delay (ms) = 60,000 ÷ BPM
Example at 120 BPM:
60,000 ÷ 120 = 500 ms per quarter note beat.
Calculating Note Subdivisions
Once you have the quarter note base value, apply these simple multipliers for other delay types:
- Eighth Note (1/8): Multiply quarter note ms by
0.5. At 120 BPM: 500 × 0.5 = 250 ms. - Dotted Eighth Note (1/8d): Multiply eighth note ms by
1.5(or quarter note by0.75). At 120 BPM: 500 × 0.75 = 375 ms. Great for syncopated guitar throws and synth arpeggios. - Sixteenth Note (1/16): Multiply quarter note ms by
0.25. At 120 BPM: 500 × 0.25 = 125 ms. Ideal for slapback vocal echoes. - Triplets (1/8t): Multiply quarter note ms by
0.3333. At 120 BPM: 500 ÷ 3 = 166.7 ms.
Instant Delay Calculation
Skip the manual math! Use our interactive BPM Delay Calculator to get instant, accurate millisecond values for straight, dotted, and triplet delay repeats.