One Rep Max for 247.5 kg × 10 reps

One Rep Max Calculator

One Rep Max for

lifted for

reps

What is the one rep max for 247.5 kg × 10 reps?

Answer

Lifting 247.5 kg for 10 reps gives an estimated one rep max of
330 kg

A set of 10 reps at 247.5 kg is

75%

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:

247.5 × (1 + 10 ÷ 30)

=

247.5 × 1.3333

=

330 kg

Training Weights as a % of 1RM

Percentages of your estimated max of 330 kg, the way most strength programmes prescribe load:

% of 1RMWorking Weight
95%313.5 kg
90%297 kg
85%280.5 kg
80%264 kg
75%247.5 kg
70%231 kg
65%214.5 kg
60%198 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 247.5 kg × 10 reps:

FormulaEstimated 1RM
Epley330 kg
Brzycki330 kg
Lombardi311.6 kg
O'Conner309.4 kg
Wathan334.8 kg
Lander331.8 kg
Mayhew324.1 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 247.5 kg × 10 reps? (The answer is: 330 kg). Enter the weight you lifted (e.g. 247.5), pick pounds or kilograms, and enter how many reps you managed (e.g. 10).

One Rep Max Calculator

One Rep Max for

lifted for

reps

One Rep Max Table for 247.5 kg

RepsOne Rep Max% of 1RM
2 reps264 kg93.8%
3 reps272.3 kg90.9%
4 reps280.5 kg88.2%
5 reps288.8 kg85.7%
6 reps297 kg83.3%
7 reps305.3 kg81.1%
8 reps313.5 kg78.9%
9 reps321.8 kg76.9%
10 reps330 kg75%
11 reps338.3 kg73.2%
12 reps346.5 kg71.4%

FAQ

What is the one rep max for 247.5 kg × 10 reps?

Lifting 247.5 kg for 10 reps gives an estimated one rep max of 330 kg

How much of my max is 247.5 kg for 10 reps?

247.5 kg for 10 reps works out at 75% of an estimated one rep max of 330 kg.

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

90% of 330 kg is 297 kg and 70% is 231 kg. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.