BPM: In A Minute

Give tempo and time signature

The speed at which music is played/performed is expressed as beats-per-minute or BPM. The more BPM, the faster the music goes. Most music uses the same BPM range as the human heartbeat: 60-140 bpm.
A base of 16 means that the bar is divided in 16 parts of length 1/16. The most common bases are 4, 8, 16 or 32. Use base 12 or 24 if you also want calculations for triplets.
This is also used in "Quantising": the process of snapping notes to the nearest beat subdivision.

Quick BPM overview

Beats per minute
100 BPM
Beats per bar
3 beats
Bars per minute
33.3
Length of 1 beat
0.6 sec
Length of 1 bar
1.8 sec
Beats per second
1.6667 Hz

Fractions for base 16

These are some common fractions (handy for setting delays, LFO and modulation parameters)


1/16
1/16
6.25%
113 ms
8.89 Hz

2/16
1/8
12.5%
225 ms
4.44 Hz

3/16
3/16
18.75%
338 ms
2.96 Hz

4/16
1/4
25%
450 ms
2.22 Hz

5/16
5/16
31.25%
563 ms
1.78 Hz

6/16
3/8
37.5%
675 ms
1.48 Hz

7/16
7/16
43.75%
788 ms
1.27 Hz

8/16
1/2
50%
900 ms
1.11 Hz

9/16
9/16
56.25%
1 013 ms
0.988 Hz

10/16
5/8
62.5%
1 125 ms
0.889 Hz

11/16
11/16
68.75%
1 238 ms
0.808 Hz

12/16
3/4
75%
1 350 ms
0.741 Hz

13/16
13/16
81.25%
1 463 ms
0.684 Hz

14/16
7/8
87.5%
1 575 ms
0.635 Hz

15/16
15/16
93.75%
1 688 ms
0.593 Hz

16/16
1/1
100%
1 800 ms
0.556 Hz

24/16
3/2
150%
2 700 ms
0.370 Hz

32/16
2/1
200%
3 600 ms
0.278 Hz

48/16
3/1
300%
5 400 ms
0.185 Hz

64/16
4/1
400%
7 200 ms
0.139 Hz

How to use this page

If you have a 135 BPM song, and you want a phase modulation of 4 beats: that is 1.778 sec
If you have a 98 BPM song in a measure of 3/4, and you want to know how long 8 bars is: 14.7 sec
If you have a 128 BPM song, and you want an audio delay of 2/3 of a beat: this is 313 ms
If you have a 80 BPM song, and you want an LFO of 5/4 of a bar: this is 4687.5 ms

Musical genres

These are some popular modern music genres with typical BPM speeds.

Slow dub/reggae
Fast dub/reggae
Deep house
Slow house
Electro house
Trance
Dubstep
Hard house
Jungle
Drum&Bass
Gabber

Music calculators & converters

Beats-per-minute
Convert BPM to Hz, bar length, fractions
Audio delay
Calculate audio delay length in msec
Music Frequency
Convert pitch to musical note and wavelength
Song length
Calculate song length from BPM
Music Scale
Generate scales with frequencies
Tap your tempo
Tap to find the BPM of a song or a heartbeat