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Free squat max calculator to estimate your barbell squat one-rep max from a submaximal set. Enter weight and reps, choose Epley, Brzycki, or Lombardi, and get an estimated squat 1RM plus percentage loads. Explore our fitness & lifestyle calculators or use the one rep max calculator for any exercise.
Last updated: April 18, 2026
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Use a set you own with solid depth and bracing—avoid turning estimates into max-out grinders with form breakdown.
Estimated squat 1RM
140.00 kg
Using Epley formula
| % of 1RM | Weight | Training goal |
|---|---|---|
| 50% | 70.00 kg | Explosive power |
| 60% | 84.00 kg | Explosive power |
| 70% | 98.00 kg | Muscle endurance |
| 80% | 112.00 kg | Muscle growth |
| 85% | 119.00 kg | Muscle growth |
| 90% | 126.00 kg | Strength & power |
| 95% | 133.00 kg | Strength & power |
| 100% | 140.00 kg | Strength & power |
Note: Estimates assume a standard barbell back squat. Front squat, safety bar, and Smith machine numbers are different patterns—track them separately. Educational only; not medical advice.
Best rep range
About 3–8 reps
Heavier sets with fewer reps usually predict better than very high-rep squats.
Popular picks
Epley & Brzycki
Switch formulas in settings to see how your estimated squat max shifts.
Typical zones
50%–100% of 1RM
Use the table for volume, strength, and peaking blocks—align with your program.
Consistency
Same depth every rep
Shallow reps inflate estimates—log sets you would count in your own standard.
Heavy squats
Protect the lifter
Estimated max is not a cue to load that weight without preparation and equipment.
Equipment
Standard barbell back squat
Front squat, belt squat, and leg press numbers belong in separate progressions.
If you squat 120 kg for 5 reps using the Epley formula, your estimated squat max is about 140 kg (rounded). Open the calculator to match your own numbers.
Input
120 kg × 5 reps
Estimated 1RM (Epley)
~140 kg
This tool estimates your squat one-rep max from a set you already know—weight for reps. It uses the same one-rep max relationships (Epley, Brzycki, Lombardi) common in strength coaching, then converts that estimate into percentage loads for squats.
Epley: 1RM = weight × (1 + reps / 30)Brzycki: 1RM = weight × (36 / (37 − reps))Lombardi: 1RM = weight × reps^0.10We convert to kilograms internally for the math, then show your squat max in your chosen display unit.
Match depth and bar style when comparing sessions.
A squat max estimate helps program volume and intensity for leg strength without testing a true max every month. Combine it with nutrition planning via our TDEE calculator when calories support heavy training blocks.
Compare totals with DOTS and Wilks when you are sizing up meet performance.
Get a custom calculator for your platformResult: estimated squat max ≈ 140 kg
Many programs live in the 70–85% range for volume weeks; adjust to your coach or template.
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Suggested hashtags: #Squat #1RM #Strength #Powerlifting #Calculator