Warm-Up Set Calculator: Exact Plates, Reps & Rest (Free)
Type in today’s working weight, or just your 1RM, and this warm-up set calculator builds the exact ramp to get there: weight, reps, plates per side and rest for every step. No plate maths between sets.
It adjusts for the lift, the rep range and the kind of day you are having, from a normal 5×5 to a max attempt. It works in kg or lb, with your bar and the plates you own, and also handles dumbbells and machines. This ramp is the last phase of a full warm-up before a workout, so do your light cardio and activation work first.
Quick answer
Enter your working weight (or your 1RM and a percentage), the lift, your reps and today’s session type. The calculator ramps from about 50% to 85% of your working weight, rounds every step to plates you own and shows reps, plates per side and rest. Max attempts get extra singles near the top.
Key takeaways
- A 100 kg squat day ramps 50 kg x 5, 70 kg x 3, 85 kg x 2, then work.
- Every warm-up load is rounded to weight you can load with your bar, plates and collars.
- Deadlift ramps skip the empty bar and cap reps at 3 above half your working weight.
- Max-attempt ramps finish with singles at about 85% and 92.5% of the attempt.
- Warm-ups stop below about 85 to 90% of your working weight; anything heavier counts as a working set.
How do you use the warm-up set calculator?
Pick the lift and session, enter one weight and press Build. The calculator fills the rest in, including the plates for each side of the bar.
- Exercise. Squat, bench press, deadlift, overhead press, barbell row, a dumbbell exercise or a machine. The lift changes the ramp shape.
- Today’s session. Working sets (like 3×8 or 5×5), a heavy top set, a 1RM or PR attempt, or a second exercise for muscles that are already warm.
- Working weight or 1RM. Enter the weight of your first working set. If you only know your max, switch to 1RM only and choose the percentage your program uses.
- Reps. The reps in your working set. Fewer reps mean a heavier set, so the ramp gets an extra step.
- Bar, plates and ramp options. Choose your bar (20 kg, 15 kg women’s bar, trap bar and more), the plates your gym has, collars and a shorter or longer ramp.
The result shows how many warm-up sets and reps you will do and roughly how long the ramp takes, so you can plan a session that fits your time. Copy it to your phone notes or print it for the gym.
What percentages does the calculator use?
The first loaded set starts near 50% of your working weight, reps fall as the load climbs, and warm-ups stop below about 85 to 90%. Above that range a set stops being preparation and starts counting as work. The exact steps depend on the session:
| Session type | Default ramp (percent of working weight x reps) |
|---|---|
| Working sets, 1 to 5 reps (e.g. 5x5) | 50% x 5, 70% x 3, 85% x 2 |
| Working sets, 6 to 11 reps (e.g. 3x8) | 50% x 5, 75% x 3 |
| Working sets, 12+ reps | 60% x 5, or no loaded warm-up at all |
| Heavy top set | 50% x 5, 70% x 3, 85% x 2, 92.5% x 1 |
| 1RM or PR attempt | 50% x 5, 65% x 3, 75% x 2, 85% x 1, 92.5% x 1 |
| Second exercise, same muscles | 60% x 4 |
These numbers mirror what strength researchers use before a max test. In one study of trained lifters, the specific warm-up before a leg press 1RM was 8 reps at about 50% and 3 reps at about 70% of the estimated max (Abad et al., 2011). Why the reps drop as the weight rises, and why the empty bar is only a movement check, is covered in warm-up sets vs working sets. Use Ramp length to add or remove steps when you want smaller or bigger jumps.
How does the warm-up change for squat, bench and deadlift?
The percentages stay similar, but each lift loads the body differently, so the calculator adjusts the details. Here are four ramps it produces:
| Lift and working set | Warm-up the calculator builds |
|---|---|
| Squat 5x5 at 225 lb | (bar x 5-10 optional) 110 x 5, 155 x 3, 190 x 2 |
| Bench press 3x8 at 60 kg | (bar x 5-10 optional) 30 x 5, 45 x 3 |
| Deadlift heavy triple at 180 kg | 90 x 5, 125 x 3, 152.5 x 2, 167.5 x 1 |
| Bench press 1RM attempt at 120 kg | (bar optional) 60 x 5, 77.5 x 3, 90 x 2, 102.5 x 1, 110 x 1 |
- Deadlift: no empty-bar set, because the bar starts on the floor, and no more than 3 reps above 50% because each pull from the floor is more tiring than a squat or press rep. If the lightest set is under 60 kg (135 lb), pull from blocks or use bumper plates so the bar starts at normal height.
- Bench and overhead press: the optional empty-bar set is useful here for grooving the bar path and shoulder position before loading.
- Dumbbells: enter the weight of one dumbbell. Loads round to your gym’s dumbbell jumps (2 kg, 2.5 kg or 5 lb) and are shown per dumbbell.
- Machines: choose your stack or plate jump size and the ramp rounds to it, with no bar weight added.
How do you warm up for a 1RM or PR attempt?
Choose 1RM or PR attempt and the ramp adds heavy singles, with a longer rest before the attempt. Singles at about 85% and 92.5% let you feel a heavy bar without tiring out, and 3 to 5 minutes of rest before the attempt gives you time to recover.
A general warm-up matters most on max days. When trained lifters added 20 minutes of easy cycling before the same specific warm-up, their leg press 1RM was 8.4% higher on average (Abad et al., 2011). Pick a realistic attempt first. If you are not sure what that is, estimate your 1RM from a recent set and enter it in 1RM only mode. Use a spotter or safety bars for every heavy single.
Does a longer warm-up help you lift more?
A structured warm-up helps, but a longer one does not keep adding benefit. A meta-analysis of 32 high-quality studies found that warming up improved performance in 79% of the outcomes measured, with little evidence of harm (Fradkin et al., 2010).
More warm-up is not automatically better for working sets, though. When 15 men did four sets to failure at 80% of 1RM on the bench press, squat and arm curl, the total reps were the same whether they did no warm-up, a specific warm-up, an aerobic warm-up or both (Ribeiro et al., 2014). The calculator keeps ramps short and low in reps for that reason: the goal is to arrive ready, not tired. Once the working sets start, track them so you can add weight over time.
Want the full picture? Read warm-up sets vs working sets to learn how many warm-ups your goal needs and how to judge readiness from them.
Frequently asked questions
How does the calculator round the warm-up weights?
It works out the weight per side, loads your largest plates first and picks the nearest total you can build. If you tick collars, their weight is included, so the number on screen matches the bar.
What if my working weight is lighter than the bar?
Switch the bar to a 15 kg or 10 kg bar, or choose a dumbbell exercise. If your working weight is close to the weight of the bar, the empty bar is enough of a warm-up.
Can I use it with only a home gym plate set?
Yes. Pick the home set under Plates you have and every load is built from those plates only, even if that means a slightly bigger jump between steps.
Should I warm up from my 1RM or my working weight?
Use the working weight on normal training days, because the ramp should lead to the set you are about to do. Use the 1RM mode when your program lists loads as a percentage of your max.
Does it work for Starting Strength or 5x5 programs?
Yes. Choose Working sets with 5 reps and the calculator builds a three-step ramp to your working weight. Linear programs add weight every session, so rerun it each time.
Next step: build the ramp for your first lift of the next session, copy it to your phone and note how the last warm-up set moves. That is your read on the day before any working set.
Related tools and guides
This calculator gives a starting template for warm-up loads. It is not medical advice. If you have an injury or a medical condition, check with your doctor or a qualified coach before lifting heavy, and use a spotter or safety bars for near-maximal sets.