Warmup Set Generator
Free warmup set generator for barbell lifts. Enter your working weight, get a plate-friendly 50% / 75% / 100% ramp scheme tailored to your bar.
A proper warmup is the single highest-leverage thing you can do to prevent injury and lift more on your working sets. The goal isn’t to fatigue you — it’s to raise tissue temperature, prime the nervous system, and rehearse the movement pattern at progressively heavier loads so your top sets feel familiar instead of shocking.
This generator builds a three-set ramp — 50%, 75%, and 100% of your working weight (the last as a single feeler rep) — and rounds every set to the nearest 2.5 kg or 5 lb so the plates are loadable on a real bar. It mirrors the default protocol used by the MuscleBuddy training engine when it auto-loads warmups for a logged workout. Plug in your working weight, get a ramp, save the plate math for the calculator next door.
Recommended warmup ramp
How this works
The default protocol is three sets:
- 50% × 8 reps — establishes movement pattern, raises body temperature, and grooves the bar path.
- 75% × 3 reps — central-nervous-system primer at a load heavy enough to recruit high-threshold motor units but light enough to leave you fresh.
- 100% × 1 (top single) — the "feeler" rep that confirms today’s working weight is achievable before you commit to working sets.
Sets are computed as a fraction of working weight and rounded to the nearest 2.5 kg increment (the smallest standard plate jump per side). If a warmup set would land below the empty-bar weight, it’s clamped to the bar weight — you can’t lift less than the bar.
The algorithm also skips warmups entirely if your working weight is within 25% of the bar weight (about 25 kg for a 20 kg bar). At that intensity, you’re effectively already at warmup loads, and additional ramping sets would just create unnecessary fatigue.
For pulling exercises with a dead start — deadlifts, snatches, cleans — many coaches insert an extra heavier ramping set (around 90% × 1) before the working sets. That extra feeler is especially helpful when you’re working up to a true heavy single. For pressing and squatting movements with an eccentric phase, the default three-set ramp is usually enough.
One last note: warmup sets are for the first heavy lift of a session. Subsequent lifts targeting the same muscle group don’t need a full ramp — one or two transitional sets is plenty. Don’t turn warmups into a separate workout.
Frequently asked questions
- Why warm up at all?
- Warming up raises core temperature, primes the central nervous system, and rehearses the movement pattern at progressively heavier loads. Skipping warmups is the most common cause of soft-tissue strains in barbell training.
- How many warmup sets should I do?
- Three sets — 50%, 75%, and 100% of working weight (the last as a single feeler rep) — covers most compound lifts. Add an empty-bar set if you’re still cold or below body temperature.
- Why does the calculator drop warmups for light weights?
- If your working weight is barely above the empty bar, the warmup percentages would land below the bar weight — which is impossible. The algorithm skips warmups entirely when working weight is under 1.25× bar weight.
- Should I warm up every accessory exercise?
- No. Two or three feeler sets on your first heavy compound lift are usually enough. For accessories that share the same muscle group, one or two ramping sets is plenty.
- Are warmup sets the same as ramp-up sets in 5/3/1?
- They’re related but distinct. 5/3/1 prescribes specific percentages (40%, 50%, 60%) before the top sets. The MuscleBuddy default (50/75/100) is a generic three-set ramp that works for any program.
- Can I use this for pulling exercises like deadlifts?
- Yes. Deadlift warmups benefit from one extra heavier feeler because the lift starts dead from the floor. Many coaches add a 90% × 1 between the 75% and top set on heavy days.
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