Music Duration Calculator

Find the length of a passage from bars, time signature and tempo.

Duration 64

Duration (min:sec) 1:04

Formula: seconds = bars * beats per bar * 60 / BPM

Step-by-step with your numbers:

1. Values used:

2. Number of bars = 32

3. Beats per bar = 4

4. Tempo = 120 BPM

6. Duration = 64

7. Duration = 1:04

Did we solve your problem today?

Find how long a piece of music lasts from its bars and tempo.

The math behind it

duration = bars x beats per bar x 60 / BPM.

32 bars of 4/4 at 120 BPM lasts 64 seconds.

How does tempo change it?

Higher BPM means each beat is shorter, so the piece is faster and shorter.