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One Rep Max Calculator

Use this calculator to work out your 1RM. Unlike alot of other calculators on the net that use Javascript, this calculator uses sophisticated server side scripting, which should mean this also works for those with javascript disabled on their system

Enter in your weight (in KG) then select the number of reps you can perform

Please type in a weight to calculate, & select a rep

Enter Weight: KG

Select Reps:   1 2 3 4 5 6 7 8 9 10