One Rep Max for 180 kg × 8 reps

One Rep Max Calculator

One Rep Max for

lifted for

reps

What is the one rep max for 180 kg × 8 reps?

Answer

Lifting 180 kg for 8 reps gives an estimated one rep max of
228 kg

A set of 8 reps at 180 kg is

78.9%

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:

180 × (1 + 8 ÷ 30)

=

180 × 1.2667

=

228 kg

Training Weights as a % of 1RM

Percentages of your estimated max of 228 kg, the way most strength programmes prescribe load:

% of 1RMWorking Weight
95%216.6 kg
90%205.2 kg
85%193.8 kg
80%182.4 kg
75%171 kg
70%159.6 kg
65%148.2 kg
60%136.8 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 180 kg × 8 reps:

FormulaEstimated 1RM
Epley228 kg
Brzycki223.4 kg
Lombardi221.6 kg
O'Conner216 kg
Wathan230.8 kg
Lander225.2 kg
Mayhew227.3 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 180 kg × 8 reps? (The answer is: 228 kg). Enter the weight you lifted (e.g. 180), pick pounds or kilograms, and enter how many reps you managed (e.g. 8).

One Rep Max Calculator

One Rep Max for

lifted for

reps

One Rep Max Table for 180 kg

RepsOne Rep Max% of 1RM
2 reps192 kg93.8%
3 reps198 kg90.9%
4 reps204 kg88.2%
5 reps210 kg85.7%
6 reps216 kg83.3%
7 reps222 kg81.1%
8 reps228 kg78.9%
9 reps234 kg76.9%
10 reps240 kg75%
11 reps246 kg73.2%
12 reps252 kg71.4%

FAQ

What is the one rep max for 180 kg × 8 reps?

Lifting 180 kg for 8 reps gives an estimated one rep max of 228 kg

How much of my max is 180 kg for 8 reps?

180 kg for 8 reps works out at 78.9% of an estimated one rep max of 228 kg.

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

90% of 228 kg is 205.2 kg and 70% is 159.6 kg. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.