1. First, open an 8 beat loop in SF and set the time line to seconds.
2. Next, click at the end of the loop to determine the time in seconds, which is displayed underneath the loop.
3. Finally, open your calculator and divide 60 (seconds) into the amount displayed, and then multiply the sum total by 8 (beats).
Example: A loop that is 3.8400 seconds equals 125 BPM's, by dividing 60 into 3.8400 and then multiplying the sum total by 8 (beats).
Here's a personal reference chart that I have been adding to gradually. You may want to copy/paste and save it as a notepad reference for yourself. It saves time having to open your calculator everytime you need to determine BPM's:
BPM REFERENCE CHART
080 BPM x1 = 0.7500 x2 = 1.5000 x4 = 3.0000 x8 = 6.0000
081 PBM x1 = 0.7407 x2 = 1.4814 x4 = 2.9628 x8 = 5.9259
090 BPM x1 = 0.6666 x2 = 1.3332 x4 = 2.6664 x8 = 5.3328
092 BPM x1 = 0.6521 x2 = 1.3043 x4 = 2.6086 x8 = 5.2173
094 BPM x1 = 0.6382 x2 = 1.2765 x4 = 2.5530 x8 = 5.1063
105 BPM x1 = 0.5714 x2 = 1.1428 x4 = 2.2857 x8 = 4.5714
108 BPM x1 = 0.5555 x2 = 1.1111 x4 = 2.2222 x8 = 4.4444
109 BPM x1 = 0.5504 x2 = 1.1009 x4 = 2.2018 x8 = 4.4036
110 BPM x1 = 0.5454 x2 = 1.0909 x4 = 2.1818 x8 = 4.3636
114 BPM x1 = 0.5263 x2 = 1.0526 x4 = 2.1052 x8 = 4.2105
120 BPM x1 = 0.5000 x2 = 1.0000 x4 = 2.0000 x8 = 4.0000
125 BPM x1 = 0.4800 x2 = 0.9600 x4 = 1.9200 x8 = 3.8400
128 BPM x1 = 0.4687 x2 = 0.9375 x4 = 1.8750 x8 = 3.7500
130 BPM x1 = 0.4615 x2 = 0.9230 x4 = 1.8461 x8 = 3.6923
135 BPM x1 = 0.4444 x2 = 0.8888 x4 = 1.7777 x8 = 3.5555
140 BPM x1 = 0.4285 x2 = 0.8571 x4 = 1.7142 x8 = 3.4285
162 BPM x1 = 0.3703 x2 = 0.7407 x4 = 1.4814 x8 = 2.9629
188 BPM x1 = 0.3191 x2 = 0.6382 x4 = 1.2765 x8 = 2.5531
Alternatively, if you already know the BPM's of an 8 beat loop, but want to determine the seconds, then you simply divide 60 into xxx BPM's and then multiply the sum total by 8 (beats).
I hope this is helpful. Peace, out.
