Bar Duration in 3/4 (Waltz) at 120 BPM
A 3/4 bar at 120 BPM lasts 1.5 seconds.
How to use this tool
- Enter bpm, beats per bar and beat unit in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your seconds per bar and the full breakdown beneath it.
In waltz time (3/4) at 120 BPM, each bar lasts 1.5 seconds — helpful for choreographers and composers.
Frequently asked questions
- How long is a bar at 120 BPM in 4/4?
- At 120 BPM each quarter note lasts 0.5 s, so a 4-beat bar lasts 2.0 s (2000 ms).