What this tool does
The Music Delay Time Calculator converts any tempo in beats per minute (BPM) into precise delay times in milliseconds. When you set a delay, reverb pre-delay, or LFO rate to one of these values, the effect locks perfectly to your track's tempo grid instead of drifting or clashing with the rhythm.
The calculator covers every standard note value from whole notes down to thirty-second notes. For each note value it shows three variations: normal (straight), dotted (one and a half times the normal duration), and triplet (two-thirds of the normal duration). You can also switch the display from milliseconds to hertz, which is useful for setting LFO speeds on synths, tremolo pedals, and modulation effects.
A built-in tap tempo feature lets you tap along to a track to detect its BPM automatically, so you do not need to look it up first.
How it calculates
**Core formula:** \`\`\` One beat (ms) = 60,000 / BPM \`\`\`
**Note value multipliers:** | Note | Beats | |------|-------| | Whole (1/1) | 4 | | Half (1/2) | 2 | | Quarter (1/4) | 1 | | Eighth (1/8) | 0.5 | | Sixteenth (1/16) | 0.25 | | Thirty-second (1/32) | 0.125 |
**Variations:** - **Dotted** = Normal time x 1.5 - **Triplet** = Normal time x 2/3
**Frequency conversion:** \`\`\` Hz = 1000 / delay in ms \`\`\`
**Example at 120 BPM:** One beat = 60,000 / 120 = 500 ms. A quarter note delay is 500 ms, a dotted quarter is 750 ms, and a quarter-note triplet is 333.3 ms. The LFO frequency for a quarter note at this tempo is 2.000 Hz.
Who should use this
- **Music producers**: Dial in tempo-synced delay, reverb pre-delay, and sidechain release times in any DAW - **Mix engineers**: Set precise echo and reverb times that sit cleanly in the mix without muddying the rhythm - **Sound designers**: Sync LFO rates, tremolo speeds, and modulation effects to a project tempo - **Live performers**: Quickly calculate delay times for hardware units and guitar pedals that require manual millisecond entry - **Electronic music artists**: Get exact values for techno, house, drum and bass, and other tempo-driven genres where tight sync is critical
How to use
1. Enter your track's BPM in the input field, or select a common tempo from the preset buttons 2. Alternatively, click the Tap Tempo button repeatedly in time with your music to auto-detect the BPM 3. Read the quarter note delay time from the main result display 4. Review the full table for all note values with normal, dotted, and triplet variations 5. Toggle between milliseconds and Hz using the switch above the table 6. Enter the millisecond value into your delay plugin, reverb pre-delay, or LFO rate setting
Practical tips
**Delay mixing tips:** - A **quarter-note delay** is the most common starting point for vocal and guitar echoes - **Dotted eighth-note delays** create the classic U2/The Edge bouncing rhythm pattern - **Sixteenth-note delays** add subtle thickness and doubling effects without obvious echoes - Use **triplet delays** to add a swing or shuffle feel to straight rhythms
**Reverb pre-delay:** Setting your reverb pre-delay to a note value (often a sixteenth or thirty-second note) pushes the reverb tail back from the dry signal, keeping vocals and instruments clear in the mix.
**LFO sync:** When your synth or modulation effect does not have a built-in tempo sync, switch to the Hz view and enter the frequency manually. This works for tremolo, vibrato, phaser, flanger, and chorus effects.
FAQs
**Q: What is the most common delay time used in music production?** A: The quarter-note delay is the most widely used starting point. At 120 BPM, that equals 500 ms. Dotted eighth notes are the second most popular choice, especially for rhythmic guitar and vocal effects.
**Q: How does tap tempo work?** A: Click the Tap Tempo button at least two times in rhythm with your track. The calculator measures the time between each tap and averages the intervals to compute your BPM. More taps produce a more accurate reading. The tap counter resets automatically after two seconds of inactivity.
**Q: What is the difference between dotted and triplet delay times?** A: A dotted note lasts 1.5 times the normal duration, creating a longer, bouncing delay pattern. A triplet note lasts two-thirds of the normal duration, creating a faster, shuffled feel. Both are essential for rhythmic variety.
**Q: Why would I use Hz instead of milliseconds?** A: Some synthesizers and modulation effects (tremolo, chorus, phaser) set their LFO speed in hertz rather than milliseconds. The Hz view gives you the exact frequency to type into those controls so the modulation stays locked to your tempo.
**Q: Can I use fractional BPM values?** A: Yes. The calculator accepts decimal BPM values, which is useful for tracks that run at tempos like 128.5 or 174.3 BPM.
**Q: How do I sync a guitar delay pedal that only has a millisecond knob?** A: Find your song's BPM, look up the note value you want in the table, and dial the pedal to that millisecond value. For example, at 130 BPM a dotted eighth note is 692.3 ms.
Explore Similar Tools
Explore more tools like this one:
- Music Scale Reference — Interactive display of major, minor, pentatonic, and... - BPM Tapper — Tap the spacebar or click to the beat and instantly see... - Online Metronome — A precise, adjustable click track for musicians. Set... - Audio Delay to Distance Calculator — Calculate delay in milliseconds for live event delay... - Cell Doubling Time Calculator — Calculate the generation time and growth rate of your...