One Rep Max for 100 lbs × 12 reps

One Rep Max Calculator
One Rep Max for
lifted for
reps

What is the one rep max for 100 lbs × 12 reps?

Answer

Lifting 100 lbs for 12 reps gives an estimated one rep max of
140 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 128.2–144.4 lbs: treat 140 lbs as a rough guide.

100 × (1 + 12 ÷ 30) = 140 lbs

Training Weights as a % of 1RM
% of 1RMWorking Weight
95%133 lbs
90%126 lbs
85%119 lbs
80%112 lbs
75%105 lbs
71.4%100 lbs — this set
70%98 lbs
65%91 lbs
60%84 lbs

Related Calculations

See Also

One Rep Max Table for 100 lbs

RepsOne Rep Max% of 1RM
2 reps106.7 lbs93.7%
3 reps110 lbs90.9%
4 reps113.3 lbs88.3%
5 reps116.7 lbs85.7%
6 reps120 lbs83.3%
7 reps123.3 lbs81.1%
8 reps126.7 lbs78.9%
9 reps130 lbs76.9%
10 reps133.3 lbs75%
11 reps136.7 lbs73.2%
12 reps140 lbs71.4%

FAQ

What is the one rep max for 100 lbs × 12 reps?

Lifting 100 lbs for 12 reps gives an estimated one rep max of 140 lbs

How much of my max is 100 lbs for 12 reps?

100 lbs for 12 reps works out at 71.4% of an estimated one rep max of 140 lbs.

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

90% of 140 lbs is 126 lbs and 70% is 98 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.

See Also