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    One Rep Max for 105 kg × 5 reps

    One Rep Max Calculator
    One Rep Max for
    lifted for
    reps

    What is the one rep max for 105 kg × 5 reps?

    Answer

    Lifting 105 kg for 5 reps gives an estimated one rep max of
    122.5 kg

    A set of 5 reps at 105 kg is

    85.7%

    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:

    105 × (1 + 5 ÷ 30)

    ≈

    105 × 1.1667

    ≈

    122.5 kg

    Training Weights as a % of 1RM

    Percentages of your estimated max of 122.5 kg, the way most strength programmes prescribe load:

    % of 1RMWorking Weight
    95%116.4 kg
    90%110.3 kg
    85%104.1 kg
    80%98 kg
    75%91.9 kg
    70%85.8 kg
    65%79.6 kg
    60%73.5 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 105 kg × 5 reps:

    FormulaEstimated 1RM
    Epley122.5 kg
    Brzycki118.1 kg
    Lombardi123.3 kg
    O'Conner118.1 kg
    Wathan123 kg
    Lander119.4 kg
    Mayhew125 kg

    Related Calculations

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    What is my 1 rep max for 105 kg × 5 reps?. 105 kg for 5 reps gives an estimated one rep max of 122.5 kg. That set is 85.7% of your maximum — see the full rep table.
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    One Rep Max Table for 105 kg

    RepsOne Rep Max% of 1RM
    2 reps112 kg93.8%
    3 reps115.5 kg90.9%
    4 reps119 kg88.2%
    5 reps122.5 kg85.7%
    6 reps126 kg83.3%
    7 reps129.5 kg81.1%
    8 reps133 kg78.9%
    9 reps136.5 kg76.9%
    10 reps140 kg75%
    11 reps143.5 kg73.2%
    12 reps147 kg71.4%

    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 105 kg × 5 reps? (The answer is: 122.5 kg). Enter the weight you lifted (e.g. 105), pick pounds or kilograms, and enter how many reps you managed (e.g. 5).
    Recalculate with different values ↑

    FAQ

    What is the one rep max for 105 kg × 5 reps?

    Lifting 105 kg for 5 reps gives an estimated one rep max of 122.5 kg

    How much of my max is 105 kg for 5 reps?

    105 kg for 5 reps works out at 85.7% of an estimated one rep max of 122.5 kg.

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

    90% of 122.5 kg is 110.3 kg and 70% is 85.8 kg. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.

    See Also