One Rep Max for 120 lbs × 4 reps

One Rep Max Calculator
One Rep Max for
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What is the one rep max for 120 lbs × 4 reps?

Answer

Lifting 120 lbs for 4 reps gives an estimated one rep max of
136 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

120 × (1 + 4 ÷ 30) = 136 lbs

comparison of methods: six other published formulas give 130.9–139.8 lbs

Training Weights as a % of 1RM
% of 1RMWorking Weight
95%129.2 lbs
90%122.4 lbs
88.2%120 lbs — this set
85%115.6 lbs
80%108.8 lbs
75%102 lbs
70%95.2 lbs
65%88.4 lbs
60%81.6 lbs

See Also

One Rep Max Table for 120 lbs

RepsOne Rep Max% of 1RM
2 reps128 lbs93.8%
3 reps132 lbs90.9%
4 reps136 lbs88.2%
5 reps140 lbs85.7%
6 reps144 lbs83.3%
7 reps148 lbs81.1%
8 reps152 lbs78.9%
9 reps156 lbs76.9%
10 reps160 lbs75%
11 reps164 lbs73.2%
12 reps168 lbs71.4%

FAQ

What is the one rep max for 120 lbs × 4 reps?

Lifting 120 lbs for 4 reps gives an estimated one rep max of 136 lbs

How much of my max is 120 lbs for 4 reps?

120 lbs for 4 reps works out at 88.2% of an estimated one rep max of 136 lbs.

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

90% of 136 lbs is 122.4 lbs and 70% is 95.2 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.