How to use IIFYM site?

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tracymayo1
tracymayo1 Posts: 445 Member
edited March 4 in Getting Started
I went to the above site, and I am trying to figure out how to enter my lean body mass. The calculation it gives me is 21.6 * Lean Body Mass (kg) + 370 = % of body fat....... but how do I know what my LBM is in KG???
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