BPM: That Jazz

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
88.8 BPM
Beats per bar
4 beats
Bars per minute
22.2
Length of 1 beat
0.6757 sec
Length of 1 bar
2.7027 sec
Beats per second
1.48 Hz

Fractions for base 16

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


1/16
1/16
6.25%
169 ms
5.92 Hz

2/16
1/8
12.5%
338 ms
2.96 Hz

3/16
3/16
18.75%
507 ms
1.97 Hz

4/16
1/4
25%
676 ms
1.48 Hz

5/16
5/16
31.25%
845 ms
1.18 Hz

6/16
3/8
37.5%
1 014 ms
0.987 Hz

7/16
7/16
43.75%
1 182 ms
0.846 Hz

8/16
1/2
50%
1 351 ms
0.740 Hz

9/16
9/16
56.25%
1 520 ms
0.658 Hz

10/16
5/8
62.5%
1 689 ms
0.592 Hz

11/16
11/16
68.75%
1 858 ms
0.538 Hz

12/16
3/4
75%
2 027 ms
0.493 Hz

13/16
13/16
81.25%
2 196 ms
0.455 Hz

14/16
7/8
87.5%
2 365 ms
0.423 Hz

15/16
15/16
93.75%
2 534 ms
0.395 Hz

16/16
1/1
100%
2 703 ms
0.370 Hz

24/16
3/2
150%
4 054 ms
0.247 Hz

32/16
2/1
200%
5 405 ms
0.185 Hz

48/16
3/1
300%
8 108 ms
0.123 Hz

64/16
4/1
400%
10 811 ms
0.0925 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
75 BPM
Fast dub/reggae
90 BPM
Deep house
96 BPM
Slow house
120 BPM
Electro house
130 BPM
Trance
135 BPM
Dubstep
140 BPM
Hard house
145 BPM
Jungle
160 BPM
Drum&Bass
175 BPM
Gabber
190 BPM

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