How to use the squat max calculator
Enter the total weight on your back, bar included, and the reps you squatted to full depth. Choose lb or kg and select Calculate 1RM. You get an estimated squat max from the Epley formula, a comparison with six other formulas, training weights by percentage and warm-up sets.
For squats, sets of 3 to 6 reps give the cleanest estimate. If you stopped with reps left, open More options and add an RPE so they count.
What common squat sets predict
These estimates use the Epley formula, the calculator's default.
| Set | Estimated max | In kg |
|---|---|---|
| 135 lb × 10 | 180 lb | 81.6 kg |
| 185 lb × 8 | 234.3 lb | 106.3 kg |
| 225 lb × 5 | 262.5 lb | 119.1 kg |
| 275 lb × 5 | 320.8 lb | 145.5 kg |
| 315 lb × 5 | 367.5 lb | 166.7 kg |
| 365 lb × 3 | 401.5 lb | 182.1 kg |
| 405 lb × 3 | 445.5 lb | 202.1 kg |
In kilos, 100 kg for 5 reps predicts 116.7 kg and 140 kg for 3 predicts 154 kg.
Why short sets work better for the squat
How many reps you can squat at a given percentage of your max varies a lot from one lifter to the next. The formulas can't see that. They treat every lift and every lifter the same way, so the longer the set, the further the estimate can drift from what you would really lift, in either direction.
Long squat sets also end for reasons that have little to do with leg strength. You run out of breath, or your upper back gives up first. Shorter, heavier sets keep the number honest.
How to get an accurate squat estimate
- Hit the same depth on every rep. A common standard is the crease of the hip dropping below the top of the knee. Reps cut high don't count.
- Keep your setup the same. High-bar and low-bar squats give different numbers, and so do squats with and without a belt or knee sleeves.
- Use a fresh set. Pick your first hard set of the day.
- Stay with 3 to 6 reps when you want a number to plan a training cycle around.
How to use your squat max in training
Once you have a max, most programs ask for a percentage of it. Typical squat work sits between 70% and 85%: heavy enough to build strength, light enough to keep every rep at full depth. With a 315 lb max, that is 220.5 to 267.8 lb, or 220 to 270 lb once you round to plates you can load.
The calculator's results list every step from 100% down to 50%. For a percentage in between, use the one rep max percentage calculator. If your program sets the weight by feel instead, the RPE calculator turns a set and its RPE into loads for the day.
Recalculate whenever you set a rep record, or every 4 to 8 weeks at the end of a training block.
Squat safety
- Squat inside a rack with the safety bars set just below the height of the bar at the bottom of your squat.
- Know how to bail before you need to. Stay under control, sit down and let the bar settle on the safety bars.
- End the set when your knees cave in, your hips shoot up first or your depth gets shorter.
- Take the warm-up sets in your results before anything heavy.
This page gives general fitness information, not medical advice. Read the disclaimer.
Squat max FAQ
How much should I squat for my bodyweight?
There is no official standard. As loose guideposts for men, a bodyweight squat for reps is a common first-year goal, one and a half times bodyweight is a solid intermediate lift, and double bodyweight is advanced. Typical milestones for women sit lower, with a bodyweight squat being a strong intermediate lift. Depth, build and training history all move these numbers.
Do high-bar and low-bar squats have the same max?
Usually not. Most lifters squat a little more with a low-bar position. Treat them as two lifts and estimate each one from its own sets.
Can I use this calculator for front squats or goblet squats?
Yes for front squats. Enter a front squat set and you get a front squat max, which will be lower than your back squat. Estimates for goblet and dumbbell squats are rougher, because grip and posture usually give out before your legs do.
Do I ever need to test a true squat max?
Not unless you compete or enjoy it. An estimate from a hard set of 3 to 5 reps is enough to set training weights, and it is much easier to recover from.