BPM to Delay Time Calculator — ms & Hz for delay and reverb

This BPM to delay calculator turns tempo into practical delay times, so you can dial in echoes, repeats, and tempo-synced effects without guessing. If you have ever wondered how many milliseconds a quarter note is at 128 BPM, or what frequency equals a half-note tremolo, this tool gives you clear answers in one place. It is designed for music production, mixing, sound design, and anyone who wants tempo-locked timing in a DAW or on hardware pedals.

The idea is simple: BPM means beats per minute, so each beat has a fixed length in time. Once you know the duration of one beat, you can divide it into common musical note values like eighths, sixteenths, dotted notes, and triplets. The calculator converts those note values into milliseconds for delay time, and into Hertz for modulation rate. That makes it easy to sync a delay plugin, reverb pre-delay, tremolo, autopan, or LFO to the tempo of a song. You also get bar lengths in seconds, which helps when building long echoes, ambient swells, or tempo-based transitions.

To use it, enter your song tempo in BPM and choose your time signature if needed. The delay table updates instantly, showing milliseconds and Hertz for each subdivision. Pick the note value you want, then copy the millisecond value into your delay time setting or the Hertz value into a modulation rate. For example, a dotted eighth note is a classic rhythmic delay for guitars, while triplets can add swing to straight grooves. If you are setting a reverb, try a short pre-delay like 10 to 40 ms to keep vocals clear without losing space.

Real-world use cases are everywhere: matching slapback delay to a rockabilly track, syncing ping-pong echoes to a synth arpeggio, aligning film cues to bar lengths, or keeping live pedal settings consistent across songs with different tempos. Save your favorite timings in session notes, and use the bar and beat readouts when a device lists only frequency instead of musical divisions. With a few clicks, this delay time calculator helps you stay in time and keep your effects musical.