Music Duration Calculator

Your details

Load a typical tempo and bar count for a common genre and section type.
Beats per minute. Common ranges: ballad 60-80, pop 100-130, EDM 120-140, trap 130-160.
BPM
Time signature determines how many beats are in each bar. Most pop and rock is 4/4.
Also called measures. A typical pop song verse is 16 bars, a chorus 8 bars, a full song 64-96 bars.
bars
Switch to reverse-solve: enter a target length and find how many bars you need.
Song duration
1:04

Total length of the section at this tempo and bar count

Duration in seconds64sec
Beat length0.5sec
Bar length2sec
Tempo markingAllegro
Beat length (sec)0.5
Bar length (sec)2

This section lasts 1:04 at 120 BPM.

  • At 120 BPM, the traditional tempo marking is Allegro.
  • Each bar lasts 2.00 seconds, so subtle timing shifts between bars add up quickly at this tempo.
  • At this rate, a full song of 96 bars would run about 3 min 12 sec.
  • For streaming platforms, aim for a total track between 2:30 and 3:30 to maximize play-through rates.

Next stepTry adjusting BPM by a few beats to fine-tune the length without re-writing the structure.

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