One Rep Max for 42.5 kg × 4 reps

One Rep Max Calculator
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What is the one rep max for 42.5 kg × 4 reps?

Answer

Lifting 42.5 kg for 4 reps gives an estimated one rep max of
48.2 kg

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

42.5 × (1 + 4 ÷ 30) ≈ 48.2 kg

comparison of methods: six other published formulas give 46.4–49.5 kg

Training Weights as a % of 1RM
% of 1RMWorking Weight
95%45.8 kg
90%43.4 kg
88.2%42.5 kg — this set
85%41 kg
80%38.6 kg
75%36.2 kg
70%33.7 kg
65%31.3 kg
60%28.9 kg

See Also

One Rep Max Table for 42.5 kg

RepsOne Rep Max% of 1RM
2 reps45.3 kg93.8%
3 reps46.8 kg90.8%
4 reps48.2 kg88.2%
5 reps49.6 kg85.7%
6 reps51 kg83.3%
7 reps52.4 kg81.1%
8 reps53.8 kg79%
9 reps55.3 kg76.9%
10 reps56.7 kg75%
11 reps58.1 kg73.1%
12 reps59.5 kg71.4%

FAQ

What is the one rep max for 42.5 kg × 4 reps?

Lifting 42.5 kg for 4 reps gives an estimated one rep max of 48.2 kg

How much of my max is 42.5 kg for 4 reps?

42.5 kg for 4 reps works out at 88.2% of an estimated one rep max of 48.2 kg.

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

90% of 48.2 kg is 43.4 kg and 70% is 33.7 kg. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.