One Rep Max for 15 lbs × 12 reps

One Rep Max Calculator
One Rep Max for
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What is the one rep max for 15 lbs × 12 reps?

Answer

Lifting 15 lbs for 12 reps gives an estimated one rep max of
21 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 19.2–21.7 lbs: treat 21 lbs as a rough guide.

15 × (1 + 12 ÷ 30) = 21 lbs

Training Weights as a % of 1RM
% of 1RMWorking Weight
95%20 lbs
90%18.9 lbs
85%17.9 lbs
80%16.8 lbs
75%15.8 lbs
71.4%15 lbs — this set
70%14.7 lbs
65%13.7 lbs
60%12.6 lbs

Related Calculations

See Also

One Rep Max Table for 15 lbs

RepsOne Rep Max% of 1RM
2 reps16 lbs93.8%
3 reps16.5 lbs90.9%
4 reps17 lbs88.2%
5 reps17.5 lbs85.7%
6 reps18 lbs83.3%
7 reps18.5 lbs81.1%
8 reps19 lbs78.9%
9 reps19.5 lbs76.9%
10 reps20 lbs75%
11 reps20.5 lbs73.2%
12 reps21 lbs71.4%

FAQ

What is the one rep max for 15 lbs × 12 reps?

Lifting 15 lbs for 12 reps gives an estimated one rep max of 21 lbs

How much of my max is 15 lbs for 12 reps?

15 lbs for 12 reps works out at 71.4% of an estimated one rep max of 21 lbs.

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

90% of 21 lbs is 18.9 lbs and 70% is 14.7 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.

See Also