BPM: Night Time Juice

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
122.2 BPM
Beats per bar
4 beats
Bars per minute
30.6
Length of 1 beat
0.491 sec
Length of 1 bar
1.964 sec
Beats per second
2.0367 Hz

Fractions for base 16

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


1/16
1/16
6.25%
123 ms
8.15 Hz

2/16
1/8
12.5%
245 ms
4.07 Hz

3/16
3/16
18.75%
368 ms
2.72 Hz

4/16
1/4
25%
491 ms
2.04 Hz

5/16
5/16
31.25%
614 ms
1.63 Hz

6/16
3/8
37.5%
736 ms
1.36 Hz

7/16
7/16
43.75%
859 ms
1.16 Hz

8/16
1/2
50%
982 ms
1.02 Hz

9/16
9/16
56.25%
1 105 ms
0.905 Hz

10/16
5/8
62.5%
1 227 ms
0.815 Hz

11/16
11/16
68.75%
1 350 ms
0.741 Hz

12/16
3/4
75%
1 473 ms
0.679 Hz

13/16
13/16
81.25%
1 596 ms
0.627 Hz

14/16
7/8
87.5%
1 718 ms
0.582 Hz

15/16
15/16
93.75%
1 841 ms
0.543 Hz

16/16
1/1
100%
1 964 ms
0.509 Hz

24/16
3/2
150%
2 946 ms
0.339 Hz

32/16
2/1
200%
3 928 ms
0.255 Hz

48/16
3/1
300%
5 892 ms
0.170 Hz

64/16
4/1
400%
7 856 ms
0.127 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