One Rep Max for 17.5 kg × 6 reps

One Rep Max Calculator
One Rep Max for
lifted for
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What is the one rep max for 17.5 kg × 6 reps?

Answer

Lifting 17.5 kg for 6 reps gives an estimated one rep max of
21 kg

A set of 6 reps at 17.5 kg 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:

17.5 × (1 + 6 ÷ 30)

=

17.5 × 1.2

=

21 kg

Training Weights as a % of 1RM

Percentages of your estimated max of 21 kg, the way most strength programmes prescribe load:

% of 1RMWorking Weight
95%20 kg
90%18.9 kg
85%17.9 kg
80%16.8 kg
75%15.8 kg
70%14.7 kg
65%13.7 kg
60%12.6 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 17.5 kg × 6 reps:

FormulaEstimated 1RM
Epley21 kg
Brzycki20.3 kg
Lombardi20.9 kg
O'Conner20.1 kg
Wathan21.2 kg
Lander20.5 kg
Mayhew21.3 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 17.5 kg × 6 reps? (The answer is: 21 kg). Enter the weight you lifted (e.g. 17.5), pick pounds or kilograms, and enter how many reps you managed (e.g. 6).

One Rep Max Table for 17.5 kg

RepsOne Rep Max% of 1RM
2 reps18.7 kg93.8%
3 reps19.3 kg90.9%
4 reps19.8 kg88.2%
5 reps20.4 kg85.7%
6 reps21 kg83.3%
7 reps21.6 kg81.1%
8 reps22.2 kg78.9%
9 reps22.8 kg76.9%
10 reps23.3 kg75%
11 reps23.9 kg73.2%
12 reps24.5 kg71.4%

FAQ

What is the one rep max for 17.5 kg × 6 reps?

Lifting 17.5 kg for 6 reps gives an estimated one rep max of 21 kg

How much of my max is 17.5 kg for 6 reps?

17.5 kg for 6 reps works out at 83.3% of an estimated one rep max of 21 kg.

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

90% of 21 kg is 18.9 kg and 70% is 14.7 kg. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.