Theory & calculators Free tool
BPM to ms calculator
Delay and reverb times for any tempo, tempo changes in percent and notes to frequencies.
- 100% free
- Runs in your browser
- Instant results
- No sign-up
One beat
500 ms
One bar (4/4)
2 s
Beat frequency
2 Hz
Delay times
Milliseconds and Hz (for LFOs) of every note value. Click a value to copy it.
Reverb on the grid
Musical values: the pre-delay is a short note and the decay ends the tail on the chosen note. Adjust by ear.
Samples
Length in samples, for sample editors and loop points.
Tempo change
How much to stretch a loop or a sample to move it from one tempo to another.
Speed
116.67 %
Time ratio
0.8571
Pitch shift
+2.67 st
The pitch shift is what you hear if the sample is sped up like a record (pitch follows speed). Time-stretching keeps the pitch.
Notes to frequencies
Equal temperament. Click a frequency to copy it.
- Straight, dotted and triplet notes
- Tempo change in percent and semitones
- Notes to frequencies
Step by step
How to use it
-
Type or tap the tempo.
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Copy the delay time you need with one click.
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Use the tempo change, samples and note frequency tables for loops, samples and tuning.
FAQ
Questions
Short answers about this tool.
How is it calculated?
A quarter note lasts 60,000 ÷ BPM milliseconds; every other value is a fraction or multiple of it.
What are dotted and triplet notes?
A dotted note lasts one and a half times its straight value; a triplet note lasts two thirds of it.
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