One Rep Max for 42.5 kg × 8 reps

One Rep Max Calculator
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What is the one rep max for 42.5 kg × 8 reps?

Answer

Lifting 42.5 kg for 8 reps gives an estimated one rep max of
53.8 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 + 8 ÷ 30) ≈ 53.8 kg

comparison of methods: six other published formulas give 51–54.5 kg

Training Weights as a % of 1RM
% of 1RMWorking Weight
95%51.1 kg
90%48.4 kg
85%45.7 kg
80%43 kg
79%42.5 kg — this set
75%40.4 kg
70%37.7 kg
65%35 kg
60%32.3 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 × 8 reps?

Lifting 42.5 kg for 8 reps gives an estimated one rep max of 53.8 kg

How much of my max is 42.5 kg for 8 reps?

42.5 kg for 8 reps works out at 79% of an estimated one rep max of 53.8 kg.

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

90% of 53.8 kg is 48.4 kg and 70% is 37.7 kg. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.