BPM: Stop My Heart

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
142.8 BPM
Beats per bar
4 beats
Bars per minute
35.7
Length of 1 beat
0.4202 sec
Length of 1 bar
1.6807 sec
Beats per second
2.38 Hz

Fractions for base 16

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


1/16
1/16
6.25%
105 ms
9.52 Hz

2/16
1/8
12.5%
210 ms
4.76 Hz

3/16
3/16
18.75%
315 ms
3.17 Hz

4/16
1/4
25%
420 ms
2.38 Hz

5/16
5/16
31.25%
525 ms
1.90 Hz

6/16
3/8
37.5%
630 ms
1.59 Hz

7/16
7/16
43.75%
735 ms
1.36 Hz

8/16
1/2
50%
840 ms
1.19 Hz

9/16
9/16
56.25%
945 ms
1.06 Hz

10/16
5/8
62.5%
1 050 ms
0.952 Hz

11/16
11/16
68.75%
1 155 ms
0.865 Hz

12/16
3/4
75%
1 261 ms
0.793 Hz

13/16
13/16
81.25%
1 366 ms
0.732 Hz

14/16
7/8
87.5%
1 471 ms
0.680 Hz

15/16
15/16
93.75%
1 576 ms
0.635 Hz

16/16
1/1
100%
1 681 ms
0.595 Hz

24/16
3/2
150%
2 521 ms
0.397 Hz

32/16
2/1
200%
3 361 ms
0.298 Hz

48/16
3/1
300%
5 042 ms
0.198 Hz

64/16
4/1
400%
6 723 ms
0.149 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