One Rep Max for 57.5 kg × 4 reps

One Rep Max Calculator
One Rep Max for
lifted for
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What is the one rep max for 57.5 kg × 4 reps?

Answer

Lifting 57.5 kg for 4 reps gives an estimated one rep max of
65.2 kg

A set of 4 reps at 57.5 kg is

88.2%

of your estimated one rep max

Note: this is an estimate, not a tested max. Rep-based formulas are closest at 2–6 reps and drift further apart as the set gets longer. Warm up and use a spotter before attempting a true single.

How to Calculate One Rep Max

Epley Formula: 1RM = weight × (1 + reps ÷ 30)

The Epley formula assumes that every extra repetition you can complete corresponds to roughly 3.33% more weight on the bar. Put your set into it:

57.5 × (1 + 4 ÷ 30)

≈

57.5 × 1.1333

≈

65.2 kg

Training Weights as a % of 1RM

Percentages of your estimated max of 65.2 kg, the way most strength programmes prescribe load:

% of 1RMWorking Weight
95%61.9 kg
90%58.7 kg
85%55.4 kg
80%52.1 kg
75%48.9 kg
70%45.6 kg
65%42.4 kg
60%39.1 kg

Other One Rep Max Formulas

Published 1RM formulas disagree, and the gap widens with the rep count. This page answers with Epley; here is what the others give for 57.5 kg × 4 reps:

FormulaEstimated 1RM
Epley65.2 kg
Brzycki62.7 kg
Lombardi66.1 kg
O'Conner63.3 kg
Wathan65.2 kg
Lander63.5 kg
Mayhew67 kg

See Also

One Rep Max Calculator

This calculator estimates your one-rep max (1RM) — the heaviest weight you could lift for a single repetition — from a set you have already completed. For example, it can help you find out what is the one rep max for 57.5 kg × 4 reps? (The answer is: 65.2 kg). Enter the weight you lifted (e.g. 57.5), pick pounds or kilograms, and enter how many reps you managed (e.g. 4).

One Rep Max Table for 57.5 kg

RepsOne Rep Max% of 1RM
2 reps61.3 kg93.8%
3 reps63.3 kg90.9%
4 reps65.2 kg88.2%
5 reps67.1 kg85.7%
6 reps69 kg83.3%
7 reps70.9 kg81.1%
8 reps72.8 kg78.9%
9 reps74.8 kg76.9%
10 reps76.7 kg75%
11 reps78.6 kg73.2%
12 reps80.5 kg71.4%

FAQ

What is the one rep max for 57.5 kg × 4 reps?

Lifting 57.5 kg for 4 reps gives an estimated one rep max of 65.2 kg

How much of my max is 57.5 kg for 4 reps?

57.5 kg for 4 reps works out at 88.2% of an estimated one rep max of 65.2 kg.

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

90% of 65.2 kg is 58.7 kg and 70% is 45.6 kg. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.