BPM to MS Converter

Tempo (BPM)

Quarter note (one beat)500 ms

Beat frequency: 2 Hz
One bar of 4/4: 2 s

Note	Straight	Dotted	Triplet
Whole note (1/1)	2,000 ms	3,000 ms	1,333.33 ms
Half note (1/2)	1,000 ms	1,500 ms	666.67 ms
Quarter note (1/4)	500 ms	750 ms	333.33 ms
Eighth note (1/8)	250 ms	375 ms	166.67 ms
Sixteenth note (1/16)	125 ms	187.5 ms	83.33 ms
Thirty-second (1/32)	62.5 ms	93.75 ms	41.67 ms

Delay time = 60,000 ÷ BPM for a quarter note. Use these values to sync delay and reverb pre-delay to the tempo.

Convert a song’s tempo into delay times in milliseconds for quarter notes, eighth notes, dotted and triplet values.

How to use the BPM to MS Converter

Enter the tempo in beats per minute.
Read the milliseconds for each note value.
Set your delay or reverb pre-delay to match.

How it works

One beat (a quarter note in 4/4) lasts 60,000 ÷ BPM milliseconds: 500 ms at 120 BPM. Halve it for eighth notes, multiply by 1.5 for dotted notes and by ⅔ for triplets. Syncing delay times to the tempo keeps echoes in the groove.

Popular bpm to milliseconds conversions

Quarter-note delay times

BPM	Quarter (ms)	Eighth (ms)	Dotted eighth (ms)
60	1,000	500	750
80	750	375	562.5
90	666.7	333.3	500
100	600	300	450
120	500	250	375
128	468.8	234.4	351.6
140	428.6	214.3	321.4
160	375	187.5	281.3
174	344.8	172.4	258.6

Frequently asked questions

How many ms is a beat at 120 BPM?

500 ms.

What is a dotted eighth at 120 BPM?

375 ms.

How do I calculate BPM from ms?

BPM = 60,000 ÷ milliseconds per beat.

What tempo is 128 BPM?

A common house music tempo — each beat is 468.75 ms.