(Weight in KG) / (Height in Meters) x (Height in Meters)
I am sure that none of you use the metric system so you would have to convert these manually. Now if you don't want to calculate it manually I'll put the link here. I made it so it opens in another window for you guys. But for those of you who want to do the manual conversion I will show you it!
Conversion: Conversion:
inches to meters pounds to kg
Your Height In Inches / 39.37 Your Weight In lbs x 2.2
ex: 66 / 39.37 = 1.68 ex: 135 / 2.2= 61.36
Then plug these into the top ^ equation.
(61.36) / (1.68) x (1.68) = 21.8 <----that is the BMI for the examples.
Now that number it gives you is your body fat percentage. I made this chart to show you if you are underweight, overweight, etc according to BMI.
| Underweight | Healthy Weight | Overweight | Obese |
| BMI 18.5 or lower | BMI 19-24.9 | BMI 25-29.9 | BMI 30 or higher |
Take in consideration that this formula doesn't account for how much of that percentage is muscle, bones, etc. It's just a basic cookie cutter formula that bases its results all off over the "average" person.
Now there are many other forms of calculating body fat and they all have their flaws, but we will talk about those another time. Now, I'm not saying that BMI isn't a good way to follow weight loss but when using this form of calculation there are always errors. The best way to calculate a body fat measurement is this method. I'll even compare my results to BMI for you guys!
So my BMI calculation from above was 21.8% body fat and when I measure myself with a tape measure I was 20% body fat.
Also just for a second test my roommate's BMI is 20% and when I measure her with a tape measure she was 17% body fat (yes I know, she is TINY haha)
Hopefully this post increased your knowledge on measuring body fat!
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