Free calculator

Warm-up set calculator

Enter today’s working weight and we build a warm-up ramp: enough sets to groove the movement and prime your nervous system, with reps that taper so you start your work sets fresh.

Updated 20 October 2026 · By the Gymex Product Team · Free, no sign-up, runs in your browser

Your warm-up
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SetWeightReps

Gymex adds warm-up sets for you and keeps them separate from your working volume.

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How the warm-up ramp works

A good warm-up raises your body temperature, rehearses the exact movement you’re about to load, and gets you used to heavier weights, without wasting the energy you need for your work sets. The calculator follows a simple, widely used pattern:

Sets that would be lighter than the bar, or that round to the same weight twice, are skipped automatically.

Example: working sets at 140 kg

Warm-up ramp for a 140 kg working set
SetWeightReps
1Empty bar (20 kg)10
255 kg (40%)5
385 kg (60%)3
4112.5 kg (80%)2
5125 kg (90%)1

Tips

Frequently asked questions

How many warm-up sets should I do before lifting?

For heavy compound lifts, 3 to 5 warm-up sets that ramp from the empty bar to about 90% of your working weight work well. Lighter accessory exercises usually need only one or two.

How many reps should warm-up sets be?

Start with more reps on the empty bar and taper as the weight rises, for example 10, 5, 3, 2 and 1. Low reps on the heavier warm-ups prepare you without causing fatigue.

Do warm-up sets count as working sets?

No. Warm-up sets are too far from failure to drive much muscle growth, so most lifters count only working sets taken within about 4 reps of failure.

Should I warm up differently for squats and deadlifts?

The same ramp works for both. Deadlifts often need fewer warm-up sets because the first pull from the floor is easier to groove, and some lifters skip the empty bar.

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More free strength tools

These calculators give estimates for healthy adults. They are not medical advice. If you have an injury or a health condition, speak to a qualified professional before changing your training or diet.

Warm-ups logged, work sets coached

Gymex separates warm-ups from working sets, suggests your next weight and tracks every PR. Free on iPhone and Android.