There are many BMI calculators on the Internet. Mine does pretty much the same thing, but instead of just telling you where you are, it tells you where you should be and how far from the mark you fall.
Your BMI is
A healthy BMI range is between 18.5 and 24.9.
The midpoint is 21.7
The midpoint weight for your height is
Your RFM is
An acceptable Relative Fat Mass is betwee 18 and 24%
for your height the range for average girth is from
for your height the range for someone in fit condition is from