BPM: Cartier Santos

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
89.5 BPM
Beats per bar
4 beats
Bars per minute
22.4
Length of 1 beat
0.6704 sec
Length of 1 bar
2.6816 sec
Beats per second
1.4917 Hz

Fractions for base 16

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


1/16
1/16
6.25%
168 ms
5.97 Hz

2/16
1/8
12.5%
335 ms
2.98 Hz

3/16
3/16
18.75%
503 ms
1.99 Hz

4/16
1/4
25%
670 ms
1.49 Hz

5/16
5/16
31.25%
838 ms
1.19 Hz

6/16
3/8
37.5%
1 006 ms
0.994 Hz

7/16
7/16
43.75%
1 173 ms
0.852 Hz

8/16
1/2
50%
1 341 ms
0.746 Hz

9/16
9/16
56.25%
1 508 ms
0.663 Hz

10/16
5/8
62.5%
1 676 ms
0.597 Hz

11/16
11/16
68.75%
1 844 ms
0.542 Hz

12/16
3/4
75%
2 011 ms
0.497 Hz

13/16
13/16
81.25%
2 179 ms
0.459 Hz

14/16
7/8
87.5%
2 346 ms
0.426 Hz

15/16
15/16
93.75%
2 514 ms
0.398 Hz

16/16
1/1
100%
2 682 ms
0.373 Hz

24/16
3/2
150%
4 022 ms
0.249 Hz

32/16
2/1
200%
5 363 ms
0.186 Hz

48/16
3/1
300%
8 045 ms
0.124 Hz

64/16
4/1
400%
10 726 ms
0.0932 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