Music Duration Calculator

For the running time of a section or a whole piece.
Delay time
500.000 ms
BPM, Bar Length and Delay Time Calculator
Delay as a frequency
2.0000 Hz
One beat
500.000 ms
One bar
2,000.000 ms
One bar
2.0000 s
Running time of the bars
192.000 s
Running time
3:12
Bars a minute
30.0000
Time signature
4/4
Summary
At 120 BPM a quarter note is 500 ms, a 4/4 bar is 2000 ms, and the chosen delay is 500 ms.
Worked out from Roey Izhaki, Mixing Audio: Concepts, Practices and Tools, 3rd edition, chapter on delay and 1 other source.

How this is worked out

4 steps
  1. One quarter note = 60,000 / 120 = 500 ms.
  2. A 4/4 bar holds 4 x 4/4 = 4 quarter notes, so it lasts 2000 ms.
  3. A quarter note = 500 x 1 x 1 = 500 ms (2 Hz).
  4. 96 bars run 192 seconds (3:12).
Every note value in millisecondstable
whole note: 2000 ms, dotted whole note: 3000 ms, triplet whole note: 1333.33 ms, half note: 1000 ms, dotted half note: 1500 ms, triplet half note: 666.67 ms, quarter note: 500 ms, dotted quarter note: 750 ms, triplet quarter note: 333.33 ms, eighth note: 250 ms, dotted eighth note: 375 ms, triplet eighth note: 166.67 ms, sixteenth note: 125 ms, dotted sixteenth note: 187.5 ms, triplet sixteenth note: 83.33 ms, thirty-second note: 62.5 ms, dotted thirty-second note: 93.75 ms, triplet thirty-second note: 41.67 ms

Results are general information, not financial, tax, legal, medical or engineering advice.