One Rep Max for 10 kg × 9 reps

One Rep Max Calculator
One Rep Max for
lifted for
reps

What is the one rep max for 10 kg × 9 reps?

Answer

Lifting 10 kg for 9 reps gives an estimated one rep max of
13 kg

A set of 9 reps at 10 kg 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:

10 × (1 + 9 ÷ 30)

=

10 × 1.3

=

13 kg

Training Weights as a % of 1RM

Percentages of your estimated max of 13 kg, the way most strength programmes prescribe load:

% of 1RMWorking Weight
95%12.4 kg
90%11.7 kg
85%11.1 kg
80%10.4 kg
75%9.8 kg
70%9.1 kg
65%8.5 kg
60%7.8 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 10 kg × 9 reps:

FormulaEstimated 1RM
Epley13 kg
Brzycki12.9 kg
Lombardi12.5 kg
O'Conner12.3 kg
Wathan13.2 kg
Lander12.9 kg
Mayhew12.9 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 10 kg × 9 reps? (The answer is: 13 kg). Enter the weight you lifted (e.g. 10), pick pounds or kilograms, and enter how many reps you managed (e.g. 9).

One Rep Max Table for 10 kg

RepsOne Rep Max% of 1RM
2 reps10.7 kg93.8%
3 reps11 kg90.9%
4 reps11.3 kg88.2%
5 reps11.7 kg85.7%
6 reps12 kg83.3%
7 reps12.3 kg81.1%
8 reps12.7 kg78.9%
9 reps13 kg76.9%
10 reps13.3 kg75%
11 reps13.7 kg73.2%
12 reps14 kg71.4%

FAQ

What is the one rep max for 10 kg × 9 reps?

Lifting 10 kg for 9 reps gives an estimated one rep max of 13 kg

How much of my max is 10 kg for 9 reps?

10 kg for 9 reps works out at 76.9% of an estimated one rep max of 13 kg.

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

90% of 13 kg is 11.7 kg and 70% is 9.1 kg. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.