# Beats-per-minute calculator: 120bpm

### 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.

Beats per minute
120 BPM
Beats per bar
4 beats
Bars per minute
30
Length of 1 beat
0.5 sec
Length of 1 bar
2 sec
Beats per second
2 Hz

### Fractions for base 16

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

1/16
1/16
6.25%
125 ms
8.00 Hz

2/16
1/8
12.5%
250 ms
4.00 Hz

3/16
3/16
18.75%
375 ms
2.67 Hz

4/16
1/4
25%
500 ms
2.00 Hz

5/16
5/16
31.25%
625 ms
1.60 Hz

6/16
3/8
37.5%
750 ms
1.33 Hz

7/16
7/16
43.75%
875 ms
1.14 Hz

8/16
1/2
50%
1 000 ms
1.00 Hz

9/16
9/16
56.25%
1 125 ms
0.889 Hz

10/16
5/8
62.5%
1 250 ms
0.800 Hz

11/16
11/16
68.75%
1 375 ms
0.727 Hz

12/16
3/4
75%
1 500 ms
0.667 Hz

13/16
13/16
81.25%
1 625 ms
0.615 Hz

14/16
7/8
87.5%
1 750 ms
0.571 Hz

15/16
15/16
93.75%
1 875 ms
0.533 Hz

16/16
1/1
100%
2 000 ms
0.500 Hz

24/16
3/2
150%
3 000 ms
0.333 Hz

32/16
2/1
200%
4 000 ms
0.250 Hz

48/16
3/1
300%
6 000 ms
0.167 Hz

64/16
4/1
400%
8 000 ms
0.125 Hz

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