DelayCalc BPM

Type a tempo and every note value lines up with its delay time and LFO rate. Reverse ms or Hz back to BPM, get bar & loop lengths, 5/7 tuplets, samples. Tap to copy.

DelayCalc BPM turns a tempo into exact delay times and LFO rates in an instant — built for music producers and live engineers.

Type in a BPM and every note value lines up with its delay time (ms) and LFO frequency (Hz). No more doing the math by hand or digging through a chart; the number you need is right in front of you.

Don't know the tempo? Just tap along to the beat and DelayCalc estimates the BPM for you (tap tempo is a helper, not a precision detector).

Already have a time? Work backwards: enter a delay in ms or an LFO rate in Hz and DelayCalc tells you the BPM and the closest note values. "What BPM is this 375 ms pedal?" — answered.

Going further out? Odd tuplets (quintuplets and septuplets) are covered for polyrhythmic delays and experimental LFO rates.

Need a full bar or a loop? Pick a meter (3/4, 5/4, 5/8, 6/8, 7/8, 9/8 and more) and DelayCalc gives you the length of one bar and of 1 / 2 / 4 / 8-bar loops in ms, seconds, Hz, and samples — for loop LFOs, sequencers, and samplers.

Tap any note value to go deeper: seconds, plus sample counts at 44.1, 48, and 96 kHz. Copy any value with one tap straight into your gear or DAW.

Great for:

• Dialing in delay and LFO settings in your DAW
• Setting tempo-synced synths and delay pedals by hand
• Working backwards from a ms or Hz value to BPM and note value
• Timing loop LFOs, sequencer cycles, and sampler loop lengths
• Matching effects to the track at live PA gigs and rehearsals
• Pulling values from a track's tempo while DJing

Features:

• Instant ms / Hz from any BPM
• 15 note values, including triplets, dotted notes, and 32nds (1/1 to 1/32D)
• Odd tuplets: quintuplets and septuplets (5:4 / 7:4 ratios, Advanced)
• Reverse lookup: ms → BPM and Hz → BPM, with closest note candidates
• Meter & Loop Length: bar and 1 / 2 / 4 / 8-bar loops in ms / seconds / Hz / samples
• One-tap copy for any value
• Saved Setups: store a setup and restore it later (up to 20, on-device)
• Tap tempo to estimate BPM (helper feature)
• A clear warning when your taps are uneven
• Sample counts at 44.1 / 48 / 96 kHz for every note
• Dark, high-contrast UI that stays readable on a dim stage

Simple and honest:

• Values use your project tempo (quarter-note BPM) — the same numbers as your DAW
• A fast manual calculator — no mic analysis, no DAW link, no setup
• Saved setups stay on your device (nothing sent to the cloud)
• Core calculations work offline (a connection is only needed to open the Privacy Policy)
• No account
• No ads
• No subscription — pay once

Supported note values:

1/1, 1/2, 1/2D, 1/4, 1/4T, 1/4D, 1/8, 1/8T, 1/8D, 1/16, 1/16T, 1/16D, 1/32, 1/32T, 1/32D