One Rep Max for 165 lbs × 8 reps

One Rep Max Calculator

One Rep Max for

lifted for

reps

What is the one rep max for 165 lbs × 8 reps?

Answer

Lifting 165 lbs for 8 reps gives an estimated one rep max of
209 lbs

A set of 8 reps at 165 lbs 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:

165 × (1 + 8 ÷ 30)

=

165 × 1.2667

=

209 lbs

Training Weights as a % of 1RM

Percentages of your estimated max of 209 lbs, the way most strength programmes prescribe load:

% of 1RMWorking Weight
95%198.6 lbs
90%188.1 lbs
85%177.7 lbs
80%167.2 lbs
75%156.8 lbs
70%146.3 lbs
65%135.9 lbs
60%125.4 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 165 lbs × 8 reps:

FormulaEstimated 1RM
Epley209 lbs
Brzycki204.8 lbs
Lombardi203.1 lbs
O'Conner198 lbs
Wathan211.5 lbs
Lander206.4 lbs
Mayhew208.4 lbs

Related Calculations

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 165 lbs × 8 reps? (The answer is: 209 lbs). Enter the weight you lifted (e.g. 165), 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 165 lbs

RepsOne Rep Max% of 1RM
2 reps176 lbs93.8%
3 reps181.5 lbs90.9%
4 reps187 lbs88.2%
5 reps192.5 lbs85.7%
6 reps198 lbs83.3%
7 reps203.5 lbs81.1%
8 reps209 lbs78.9%
9 reps214.5 lbs76.9%
10 reps220 lbs75%
11 reps225.5 lbs73.2%
12 reps231 lbs71.4%

FAQ

What is the one rep max for 165 lbs × 8 reps?

Lifting 165 lbs for 8 reps gives an estimated one rep max of 209 lbs

How much of my max is 165 lbs for 8 reps?

165 lbs for 8 reps works out at 78.9% of an estimated one rep max of 209 lbs.

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

90% of 209 lbs is 188.1 lbs and 70% is 146.3 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.

See Also