One Rep Max for 255 lbs × 12 reps

One Rep Max Calculator
One Rep Max for
lifted for
reps

What is the one rep max for 255 lbs × 12 reps?

Answer

Lifting 255 lbs for 12 reps gives an estimated one rep max of
357 lbs

Epley formula · an estimate from a set taken close to failure; accuracy depends on the exercise and the person and drops as reps grow

At 12 reps the formulas drift apart — the others give 326.9–368.3 lbs: treat 357 lbs as a rough guide.

255 × (1 + 12 ÷ 30) = 357 lbs

Training Weights as a % of 1RM
% of 1RMWorking Weight
95%339.2 lbs
90%321.3 lbs
85%303.5 lbs
80%285.6 lbs
75%267.8 lbs
71.4%255 lbs — this set
70%249.9 lbs
65%232.1 lbs
60%214.2 lbs

Related Calculations

See Also

One Rep Max Table for 255 lbs

RepsOne Rep Max% of 1RM
2 reps272 lbs93.8%
3 reps280.5 lbs90.9%
4 reps289 lbs88.2%
5 reps297.5 lbs85.7%
6 reps306 lbs83.3%
7 reps314.5 lbs81.1%
8 reps323 lbs78.9%
9 reps331.5 lbs76.9%
10 reps340 lbs75%
11 reps348.5 lbs73.2%
12 reps357 lbs71.4%

FAQ

What is the one rep max for 255 lbs × 12 reps?

Lifting 255 lbs for 12 reps gives an estimated one rep max of 357 lbs

How much of my max is 255 lbs for 12 reps?

255 lbs for 12 reps works out at 71.4% of an estimated one rep max of 357 lbs.

What should I lift at 90% and 70% of that max?

90% of 357 lbs is 321.3 lbs and 70% is 249.9 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.

See Also