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    One Rep Max for 280 lbs × 4 reps

    One Rep Max Calculator
    One Rep Max for
    lifted for
    reps

    What is the one rep max for 280 lbs × 4 reps?

    Answer

    Lifting 280 lbs for 4 reps gives an estimated one rep max of
    317.3 lbs

    Epley formula · an estimate from a set taken close to failure; accuracy depends on the exercise and the person and drops as reps grow

    280 × (1 + 4 ÷ 30) ≈ 317.3 lbs

    comparison of methods: six other published formulas give 305.5–326.2 lbs

    Training Weights as a % of 1RM
    % of 1RMWorking Weight
    95%301.4 lbs
    90%285.6 lbs
    88.2%280 lbs — this set
    85%269.7 lbs
    80%253.8 lbs
    75%238 lbs
    70%222.1 lbs
    65%206.2 lbs
    60%190.4 lbs

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    What is my 1 rep max for 280 lbs × 4 reps? 280 lbs for 4 reps gives an estimated one rep max of 317.3 lbs. That set is 88.2% of your maximum — see the full rep table.
    https://calculat.io/en/weight/one-rep-max/280--lb--4-reps/generated.jpgCopy

    One Rep Max Table for 280 lbs

    RepsOne Rep Max% of 1RM
    2 reps298.7 lbs93.7%
    3 reps308 lbs90.9%
    4 reps317.3 lbs88.2%
    5 reps326.7 lbs85.7%
    6 reps336 lbs83.3%
    7 reps345.3 lbs81.1%
    8 reps354.7 lbs78.9%
    9 reps364 lbs76.9%
    10 reps373.3 lbs75%
    11 reps382.7 lbs73.2%
    12 reps392 lbs71.4%

    FAQ

    What is the one rep max for 280 lbs × 4 reps?

    Lifting 280 lbs for 4 reps gives an estimated one rep max of 317.3 lbs

    How much of my max is 280 lbs for 4 reps?

    280 lbs for 4 reps works out at 88.2% of an estimated one rep max of 317.3 lbs.

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

    90% of 317.3 lbs is 285.6 lbs and 70% is 222.1 lbs. Heavy strength work usually sits at 85–95%, while volume and technique work sits nearer 65–75%.

    See Also