One Rep Max for 450 lbs × 2 reps

One Rep Max Calculator

One Rep Max for

lifted for

reps

What is the one rep max for 450 lbs × 2 reps?

Answer

Lifting 450 lbs for 2 reps gives an estimated one rep max of
480 lbs

A set of 2 reps at 450 lbs is

93.8%

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:

450 × (1 + 2 ÷ 30)

=

450 × 1.0667

=

480 lbs

Training Weights as a % of 1RM

Percentages of your estimated max of 480 lbs, the way most strength programmes prescribe load:

% of 1RMWorking Weight
95%456 lbs
90%432 lbs
85%408 lbs
80%384 lbs
75%360 lbs
70%336 lbs
65%312 lbs
60%288 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 450 lbs × 2 reps:

FormulaEstimated 1RM
Epley480 lbs
Brzycki462.9 lbs
Lombardi482.3 lbs
O'Conner472.5 lbs
Wathan475.7 lbs
Lander469 lbs
Mayhew501.5 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 450 lbs × 2 reps? (The answer is: 480 lbs). Enter the weight you lifted (e.g. 450), pick pounds or kilograms, and enter how many reps you managed (e.g. 2).

One Rep Max Calculator

One Rep Max for

lifted for

reps

One Rep Max Table for 450 lbs

RepsOne Rep Max% of 1RM
2 reps480 lbs93.8%
3 reps495 lbs90.9%
4 reps510 lbs88.2%
5 reps525 lbs85.7%
6 reps540 lbs83.3%
7 reps555 lbs81.1%
8 reps570 lbs78.9%
9 reps585 lbs76.9%
10 reps600 lbs75%
11 reps615 lbs73.2%
12 reps630 lbs71.4%

FAQ

What is the one rep max for 450 lbs × 2 reps?

Lifting 450 lbs for 2 reps gives an estimated one rep max of 480 lbs

How much of my max is 450 lbs for 2 reps?

450 lbs for 2 reps works out at 93.8% of an estimated one rep max of 480 lbs.

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

90% of 480 lbs is 432 lbs and 70% is 336 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.

See Also