Use this information to determine loop BPM and verify converted loops are the correct BPM.

Here is the formula for converting BPM to seconds:

Number of seconds in a minute / (Beats per minute / Beats per measure)

= length of 1 measure in seconds. Multiply result by number of measures.

So in summary,

60 / (BPM / 4) = 1measurelength

Rewrite the equation so it’s more calculator friendly:

[ (BPM / 4) * 1/x ] * 60 = 1measurelength

Enter it in a calculator like this:

BPM / 4 =

hit 1/X key =

* 60 = answer

Here is an example:

120 / 4 = 30

1 / 30 = 0.033¯¯

0.033¯¯ * 60 = 2

1 measure at 120 BPM is 2 seconds long.

Here are some more examples:

60 BPM (divided by 4 beats per measure) = 15 measures in 60 seconds (60 secs div by 15 meas) = 1 measure is 4 seconds

120 BPM (divided by 4 beats per measure) = 30 measures in 60 seconds (60 secs div by 30 meas) = 1 measure is 2 seconds

135 BPM = 33.75 measures in 60 sec = 1 measure is 1.777777777 seconds

30 BPM = 7.5 meas in 60 sec = 1 meas is 8 sec

88 BPM = 22 meas in 60 sec = 1 meas is 2.72¯¯ sec

240 BPM = 60 meas in 60 sec = 1 meas is 1 sec

It seems simple enough, but do it for lots of BPMs and different measure lengths and you have yourself a handy reference sheet.

BPM conversion charts in 3/4 and 4/4 time:

!BPM2seconds4.xls !BPM2seconds4-in3.rtf !BPM2seconds4-in4.rtf

note: the second column (the unlabeled one) is the quotient of: Beats per minute / Beats per measure. In the example above, it is BPM/4. It’s there to save time if I need a more precise number when recalculating.