# Thread: How accurate are ORM calculators? Also form check

1. ## How accurate are ORM calculators? Also form check

Disclaimer: Sorry if this post doubles as a form check. Also yes I took out my mask but everyone was far away- keeping my mask on will only make me pass out.

I can squat at 265 lbs for sets of 4 reps. https://youtu.be/FGQXHwfw-UI

After doing 3 sets of these, I decided to YOLO it and test out my max. I managed to parallel squat 295 lbs for a single but I didn’t feel that fatigued. I added 10 more lbs and managed to lift 305 lbs https://youtu.be/2eJ8gqv7aP4.

Are ORM calculators found online accurate? Apparently my max was 289 lbs. Idk if I have some sort of mental block when I lift- I can only do 275 lbs for 2 reps yet my one rep maxes seem to say otherwise.

2. The calculator makes an estimate based on one amrap set. It's safe to assume that 3 sets of a weight followed by singles at increased weights will lead to an underestimate of your 1rm.

In general, these calculators get less accurate the greater the number of reps you get in the set you use to estimate.

3. Originally Posted by TolerantLactose
The calculator makes an estimate based on one amrap set. It's safe to assume that 3 sets of a weight followed by singles at increased weights will lead to an underestimate of your 1rm.

In general, these calculators get less accurate the greater the number of reps you get in the set you use to estimate.
You mean to tell me I could’ve hit 3 plates :/

Also is my form alright? I normally just squat to parallel.

Regarding workouts, would it be effective to just work up to a set of a heavy single then follow up with leg press/ leg curls

4. The stronger you get the less accurate and most of the time they will just give you a ball park estimate could be 10-20 pounds either way.
Basically impossible to give an exact prediction of a ORM.

This is a formula i sometimes use to humor myself from Jim Wenders 5-3-1 program, here using your weight ,4x265x.0333+265=300.298.estimate ORM.

5. OP, the only accurate way to know your true 1RM is to lift it. Also, are you an alt for Odifududix?

6. Originally Posted by air2fakie
Also, are you an alt for Odifududix?

lol yeah, someone finally noticed. One of the accounts is used mainly on my phone (forgot the password for an account a while back but managed to fix it). I don't pay much attention to which account I use tbh.

7. Originally Posted by Odifududix
lol yeah, someone finally noticed. One of the accounts is used mainly on my phone (forgot the password for an account a while back but managed to fix it). I don't pay much attention to which account I use tbh.
Which would you rather keep, I need to close one of them.

Not allowed multiple accounts - forum rules.

8. The only form issue I see is that the bar path is drifting forward a little.

9. Originally Posted by SuffolkPunch
Which would you rather keep, I need to close one of them.

Not allowed multiple accounts - forum rules.
Feel free to close the JuniorSaint one. Unless I do it myself?

10. I've guessed exercises like BP that people are more comfortable going to failure might be more accurate. You typically know what your working set limit is. The 1 rep maxes can be a little mentally intimidating but agree within 5-10 lbs.

With something like Squat the lactic acid threshold can be so painful I rarely see anyone near real failure. Annoyingly the back usually fails before the quads, even in pro athletes.

DL, form collapse is so prevalent that alot of max efforts sets are of questionable validity for the calculator.

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