BPM: Santorini

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
132.6 BPM
Beats per bar
4 beats
Bars per minute
33.2
Length of 1 beat
0.4525 sec
Length of 1 bar
1.81 sec
Beats per second
2.21 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
8.84 Hz

2/16
1/8
12.5%
226 ms
4.42 Hz

3/16
3/16
18.75%
339 ms
2.95 Hz

4/16
1/4
25%
452 ms
2.21 Hz

5/16
5/16
31.25%
566 ms
1.77 Hz

6/16
3/8
37.5%
679 ms
1.47 Hz

7/16
7/16
43.75%
792 ms
1.26 Hz

8/16
1/2
50%
905 ms
1.10 Hz

9/16
9/16
56.25%
1 018 ms
0.982 Hz

10/16
5/8
62.5%
1 131 ms
0.884 Hz

11/16
11/16
68.75%
1 244 ms
0.804 Hz

12/16
3/4
75%
1 357 ms
0.737 Hz

13/16
13/16
81.25%
1 471 ms
0.680 Hz

14/16
7/8
87.5%
1 584 ms
0.631 Hz

15/16
15/16
93.75%
1 697 ms
0.589 Hz

16/16
1/1
100%
1 810 ms
0.552 Hz

24/16
3/2
150%
2 715 ms
0.368 Hz

32/16
2/1
200%
3 620 ms
0.276 Hz

48/16
3/1
300%
5 430 ms
0.184 Hz

64/16
4/1
400%
7 240 ms
0.138 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