BPM: Dnd

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
149.7 BPM
Beats per bar
4 beats
Bars per minute
37.4
Length of 1 beat
0.4008 sec
Length of 1 bar
1.6032 sec
Beats per second
2.495 Hz

Fractions for base 16

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


1/16
1/16
6.25%
100 ms
9.98 Hz

2/16
1/8
12.5%
200 ms
4.99 Hz

3/16
3/16
18.75%
301 ms
3.33 Hz

4/16
1/4
25%
401 ms
2.50 Hz

5/16
5/16
31.25%
501 ms
2.00 Hz

6/16
3/8
37.5%
601 ms
1.66 Hz

7/16
7/16
43.75%
701 ms
1.43 Hz

8/16
1/2
50%
802 ms
1.25 Hz

9/16
9/16
56.25%
902 ms
1.11 Hz

10/16
5/8
62.5%
1 002 ms
0.998 Hz

11/16
11/16
68.75%
1 102 ms
0.907 Hz

12/16
3/4
75%
1 202 ms
0.832 Hz

13/16
13/16
81.25%
1 303 ms
0.768 Hz

14/16
7/8
87.5%
1 403 ms
0.713 Hz

15/16
15/16
93.75%
1 503 ms
0.665 Hz

16/16
1/1
100%
1 603 ms
0.624 Hz

24/16
3/2
150%
2 405 ms
0.416 Hz

32/16
2/1
200%
3 206 ms
0.312 Hz

48/16
3/1
300%
4 810 ms
0.208 Hz

64/16
4/1
400%
6 413 ms
0.156 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