One Rep Max for 45 kg × 4 reps

One Rep Max Calculator
One Rep Max for
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What is the one rep max for 45 kg × 4 reps?

Answer

Lifting 45 kg for 4 reps gives an estimated one rep max of
51 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

45 × (1 + 4 ÷ 30) = 51 kg

comparison of methods: six other published formulas give 49.1–52.4 kg

Training Weights as a % of 1RM
% of 1RMWorking Weight
95%48.5 kg
90%45.9 kg
88.2%45 kg — this set
85%43.4 kg
80%40.8 kg
75%38.3 kg
70%35.7 kg
65%33.2 kg
60%30.6 kg

See Also

One Rep Max Table for 45 kg

RepsOne Rep Max% of 1RM
2 reps48 kg93.8%
3 reps49.5 kg90.9%
4 reps51 kg88.2%
5 reps52.5 kg85.7%
6 reps54 kg83.3%
7 reps55.5 kg81.1%
8 reps57 kg78.9%
9 reps58.5 kg76.9%
10 reps60 kg75%
11 reps61.5 kg73.2%
12 reps63 kg71.4%

FAQ

What is the one rep max for 45 kg × 4 reps?

Lifting 45 kg for 4 reps gives an estimated one rep max of 51 kg

How much of my max is 45 kg for 4 reps?

45 kg for 4 reps works out at 88.2% of an estimated one rep max of 51 kg.

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

90% of 51 kg is 45.9 kg and 70% is 35.7 kg. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.