BPM: 25

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
63.9 BPM
Beats per bar
5 beats
Bars per minute
12.8
Length of 1 beat
0.939 sec
Length of 1 bar
4.6948 sec
Beats per second
1.065 Hz

Fractions for base 16

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


1/16
1/16
6.25%
293 ms
3.41 Hz

2/16
1/8
12.5%
587 ms
1.70 Hz

3/16
3/16
18.75%
880 ms
1.14 Hz

4/16
1/4
25%
1 174 ms
0.852 Hz

5/16
5/16
31.25%
1 467 ms
0.682 Hz

6/16
3/8
37.5%
1 761 ms
0.568 Hz

7/16
7/16
43.75%
2 054 ms
0.487 Hz

8/16
1/2
50%
2 347 ms
0.426 Hz

9/16
9/16
56.25%
2 641 ms
0.379 Hz

10/16
5/8
62.5%
2 934 ms
0.341 Hz

11/16
11/16
68.75%
3 228 ms
0.310 Hz

12/16
3/4
75%
3 521 ms
0.284 Hz

13/16
13/16
81.25%
3 815 ms
0.262 Hz

14/16
7/8
87.5%
4 108 ms
0.243 Hz

15/16
15/16
93.75%
4 401 ms
0.227 Hz

16/16
1/1
100%
4 695 ms
0.213 Hz

24/16
3/2
150%
7 042 ms
0.142 Hz

32/16
2/1
200%
9 390 ms
0.106 Hz

48/16
3/1
300%
14 085 ms
0.0710 Hz

64/16
4/1
400%
18 779 ms
0.0533 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