• One Rep Max Calculator
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Training Heart Rate | VO2 max| One Rep Max Calculator
One Rep Max Calculator
No. of Repetitions Performedr A value is required.Invalid format.
Amount of Weight Used Kgs A value is required.Invalid format.

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One Rep. Maximum: or 1RM in weight training is the maximum amount of weight one can lift in a single repetition for a given exercise. One rep maxima can be used for determining an individual’s maximum strength and is the method for determining the winner in events such as powerlifting and weightlifting competitions.