Professional

Instant, private, and free

Music BPM & Timing Calculator.

Calculate note durations, bar timing, and tempo for music production

On-device calculationNo signup
01

Set your values

Results update as you type.

120.0BPM
SlowModerateFast
40300

40-300 BPM range

4.0bars
164

1-64 bars

Note Value

Note Duration (ms)

500ms

Note Duration (sec)

0.500s

Beats Per Minute

120BPM

Beats Per Second

2.00Hz

Bar Timing

Bar Duration (sec)

2.00s

Bar Duration (min)

0.03min

Bars Per Minute

30.00bars/min

Total Duration

4 bars at 120 BPM

8.0s

0.13 minutes

Note duration is derived from the tempo: at a given BPM, one beat lasts 60 seconds divided by the BPM, and every other note value is a fraction or multiple of that beat. Use the millisecond value for delay and reverb timing.

Use Cases

Sync Delay and Reverb Effects

Find the exact millisecond values for musical notes to set delay or reverb times that match your track's tempo.

Example: At 120 BPM, a quarter note is 500 ms, an eighth note is 250 ms.

Arrange Loops and Samples

Calculate bar lengths to align loops, samples, or MIDI clips perfectly in your DAW's timeline.

Example: At 90 BPM in 4/4 time, one bar lasts 2.667 seconds.

Frequently Asked Questions

How do I calculate note durations with this BPM calculator?
Enter your BPM (beats per minute) and select the note value (e.g., quarter, eighth, sixteenth). The calculator will show the duration in milliseconds for each note, helping you set delays, reverbs, or sync effects in your DAW.
What is bar timing and how is it calculated?
Bar timing refers to the duration of a musical bar (measure) based on the tempo and time signature. The calculator uses your BPM and time signature to compute the length of one bar in seconds or milliseconds, useful for arranging and aligning loops.
Can I use this calculator for live performance?
Yes, you can quickly determine note timings and bar lengths for a given BPM, which helps in setting up delay times, loop lengths, or click tracks during rehearsals or live shows.

Tips & Common Mistakes

Tips

  • Always double-check your BPM and time signature before calculating, as small errors can throw off your timing.
  • Use the millisecond values to set delay times for rhythmic echoes that lock to your track's groove.
  • For complex rhythms, calculate the duration of each note type (e.g., dotted or triplet) separately for accuracy.
  • Keep this calculator handy when producing to quickly convert between BPM and note lengths.

Common Mistakes to Avoid

  • Forgetting to set the correct time signature, which changes the bar duration calculation.
  • Using the calculator for tempo changes mid-song without recalculating for each section.
  • Assuming note durations are the same across different BPMs without adjusting.

Last updated: August 13, 2026