One Rep Max for 65 lbs × 6 reps

One Rep Max Calculator
One Rep Max for
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What is the one rep max for 65 lbs × 6 reps?

Answer

Lifting 65 lbs for 6 reps gives an estimated one rep max of
78 lbs

A set of 6 reps at 65 lbs is

83.3%

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:

65 × (1 + 6 ÷ 30)

=

65 × 1.2

=

78 lbs

Training Weights as a % of 1RM

Percentages of your estimated max of 78 lbs, the way most strength programmes prescribe load:

% of 1RMWorking Weight
95%74.1 lbs
90%70.2 lbs
85%66.3 lbs
80%62.4 lbs
75%58.5 lbs
70%54.6 lbs
65%50.7 lbs
60%46.8 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 65 lbs × 6 reps:

FormulaEstimated 1RM
Epley78 lbs
Brzycki75.5 lbs
Lombardi77.8 lbs
O'Conner74.8 lbs
Wathan78.6 lbs
Lander76.2 lbs
Mayhew79 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 65 lbs × 6 reps? (The answer is: 78 lbs). Enter the weight you lifted (e.g. 65), pick pounds or kilograms, and enter how many reps you managed (e.g. 6).
Recalculate with different values ↑

One Rep Max Table for 65 lbs

RepsOne Rep Max% of 1RM
2 reps69.3 lbs93.8%
3 reps71.5 lbs90.9%
4 reps73.7 lbs88.2%
5 reps75.8 lbs85.7%
6 reps78 lbs83.3%
7 reps80.2 lbs81.1%
8 reps82.3 lbs78.9%
9 reps84.5 lbs76.9%
10 reps86.7 lbs75%
11 reps88.8 lbs73.2%
12 reps91 lbs71.4%

FAQ

What is the one rep max for 65 lbs × 6 reps?

Lifting 65 lbs for 6 reps gives an estimated one rep max of 78 lbs

How much of my max is 65 lbs for 6 reps?

65 lbs for 6 reps works out at 83.3% of an estimated one rep max of 78 lbs.

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

90% of 78 lbs is 70.2 lbs and 70% is 54.6 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.

See Also