How much muscle did I gain?

[zac20133]

On 7-20-10: BMI 32.1: Body fat percentage 23%: Weight 205
On 10-19-10: BMI 33.4: Body fat percentage 22%: Weight 213.6


How much muscle did I gain? And can you provide me with a formula? Thanks

[broad.stance]

On 7-20-10: BMI 32.1: Body fat percentage 23%: Weight 205
On 10-19-10: BMI 33.4: Body fat percentage 22%: Weight 213.6


How much muscle did I gain? And can you provide me with a formula? Thanks

You're looking for the change in lean body mass (LBM).

Weight - (Weight x BF%) = LBM

The answer to your question is in the difference of each equation.