The best way to calculate bench press warm-up sets is to start with the empty bar for 8–10 reps, then perform 3–4 progressive sets at roughly 50%, 70%, and 85–90% of your working weight, decreasing… 

Approach deadlift warm-up sets by starting at 135 lbs (not an empty bar), then progressing through 3–4 sets of decreasing reps—typically 50%, 70%, and 85–90% of your working weight—with your final warm-up being a single… 

The purpose of a warm-up sets calculator is to eliminate guesswork by prescribing exact ramp-up weights, reps, and sets based on your working weight, ensuring safe progressive overload, optimal neuromuscular activation, and injury prevention.

You calculate warm-up sets by taking your planned working weight and applying progressive percentage jumps—typically 50%, 70%, and 90%—while decreasing reps from 5 to 1, using a warm-up sets calculator to automate the plate math.