One Rep Max for 105 lbs × 12 reps

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What is the one rep max for 105 lbs × 12 reps?

Answer

Lifting 105 lbs for 12 reps gives an estimated one rep max of
147 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 134.6–151.6 lbs: treat 147 lbs as a rough guide.

105 × (1 + 12 ÷ 30) = 147 lbs

Training Weights as a % of 1RM
% of 1RMWorking Weight
95%139.7 lbs
90%132.3 lbs
85%125 lbs
80%117.6 lbs
75%110.3 lbs
71.4%105 lbs — this set
70%102.9 lbs
65%95.6 lbs
60%88.2 lbs

Related Calculations

See Also

One Rep Max Table for 105 lbs

RepsOne Rep Max% of 1RM
2 reps112 lbs93.8%
3 reps115.5 lbs90.9%
4 reps119 lbs88.2%
5 reps122.5 lbs85.7%
6 reps126 lbs83.3%
7 reps129.5 lbs81.1%
8 reps133 lbs78.9%
9 reps136.5 lbs76.9%
10 reps140 lbs75%
11 reps143.5 lbs73.2%
12 reps147 lbs71.4%

FAQ

What is the one rep max for 105 lbs × 12 reps?

Lifting 105 lbs for 12 reps gives an estimated one rep max of 147 lbs

How much of my max is 105 lbs for 12 reps?

105 lbs for 12 reps works out at 71.4% of an estimated one rep max of 147 lbs.

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

90% of 147 lbs is 132.3 lbs and 70% is 102.9 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.

See Also