Delay & Reverb Calculator

Create perfectly synchronized effects for your music — every time. Enter your track's BPM and instantly get delay and reverb times for every note value, from whole notes down to 1/512th notes, including dotted and triplet variants.

Whether you're dialing in a subtle slapback or building massive atmospheric reverbs, this app gives you the exact numbers to make your effects sit in the groove. A wide range of applications—from music production in the studio to configuring your guitar pedals for your live sets.

Core Features (Free)

- Instant delay time calculation for all note values —normal, dotted, and triplet
- Tap Tempo — just tap in the rhythm to detect your BPM automatically
- Suggestions for 4 reverb room presets: Hall, Large Room, Small Room, Tight Echo
- Switch between milliseconds, seconds and Hertz
- Clean, fast, distraction-free interface

Pro Features

Unlock the full toolkit with a Pro subscription or a one-time purchase:

- 5 additional reverb presets — Stadium, Cathedral, Medium Room, Bathroom, and Shoebox
- Custom Presets — build and save your own reverb presets with custom pre-delay and decay time values
- Time Signature Selection — shift reverb and delay calculations to 3/4, 6/8, and more, so your effects always breathe with the bar
- Remove all ads — clean, uninterrupted user interface

Pro Plans

- Monthly subscription
- Annual subscription
- Lifetime — one-time purchase

No matter if you're a bedroom producer just getting started or a professional engineer mixing for major releases — Delay & Reverb Calculator gives you the timing precision your plugins expect.

Download now and lock your effects into the groove of your song.

Recent changes:
Big update — fresh UI + Pro features

✨ What's new:
• Refreshed look, cleaner layout
• ms / s / Hz switch
• Reverb table with bar indicator
• Crash reporting

🔓 New Pro features:
• 5 reverb rooms: Stadium, Cathedral, Medium Room, Bathroom, Shoebox
• Time Signature selector (3/4, 6/8 …)
• Create custom reverb presets

💎 Pro Plans: monthly, annual, or lifetime

🐛 Bug fixes + stability