One Rep Max for 225 lbs × 9 reps

One Rep Max Calculator

One Rep Max for

lifted for

reps

What is the one rep max for 225 lbs × 9 reps?

Answer

Lifting 225 lbs for 9 reps gives an estimated one rep max of
292.5 lbs

A set of 9 reps at 225 lbs is

76.9%

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:

225 × (1 + 9 ÷ 30)

=

225 × 1.3

=

292.5 lbs

Training Weights as a % of 1RM

Percentages of your estimated max of 292.5 lbs, the way most strength programmes prescribe load:

% of 1RMWorking Weight
95%277.9 lbs
90%263.3 lbs
85%248.6 lbs
80%234 lbs
75%219.4 lbs
70%204.8 lbs
65%190.1 lbs
60%175.5 lbs

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 225 lbs × 9 reps:

FormulaEstimated 1RM
Epley292.5 lbs
Brzycki289.3 lbs
Lombardi280.3 lbs
O'Conner275.6 lbs
Wathan296.5 lbs
Lander291.2 lbs
Mayhew289.4 lbs

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 225 lbs × 9 reps? (The answer is: 292.5 lbs). Enter the weight you lifted (e.g. 225), pick pounds or kilograms, and enter how many reps you managed (e.g. 9).

One Rep Max Calculator

One Rep Max for

lifted for

reps

One Rep Max Table for 225 lbs

RepsOne Rep Max% of 1RM
2 reps240 lbs93.8%
3 reps247.5 lbs90.9%
4 reps255 lbs88.2%
5 reps262.5 lbs85.7%
6 reps270 lbs83.3%
7 reps277.5 lbs81.1%
8 reps285 lbs78.9%
9 reps292.5 lbs76.9%
10 reps300 lbs75%
11 reps307.5 lbs73.2%
12 reps315 lbs71.4%

FAQ

What is the one rep max for 225 lbs × 9 reps?

Lifting 225 lbs for 9 reps gives an estimated one rep max of 292.5 lbs

How much of my max is 225 lbs for 9 reps?

225 lbs for 9 reps works out at 76.9% of an estimated one rep max of 292.5 lbs.

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

90% of 292.5 lbs is 263.3 lbs and 70% is 204.8 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.