Body Measurements

BMI Calculator

Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women.

Both Height and Weight are required.

Your BMI is:

(Under Weight) (Normal Weight) (Over Weight) (Obese)

Your BMI should fall between 18.5 - 24.9

Body Mass Index

Under Weight:

≤ 18.5

Normal Weight:

18.5 - 24.9

Over Weight:

25 - 29.5


≥ 30

The BMI is generally used to determine if you are underweight, normal, overweight or obese. BMI is one of the many ways to determine body composition – it doesn’t take into account an individual’s muscle mass with their weight.

Body Fat Calculator

Determine your body fat percentage with our body fat calculator. Use a scale to establish your body weight, and use a tape measure to determine the circumference of the requested areas. Then input your gender, weight and measurements below to receive a body fat index based on average values.

Gender is required.

All measurements are required.

All measurements are required.


Your Body Fat Percentage is:


Body Fat Percentage Categories
Classification Women (% Fat) Men (% Fat)
Essential Fat 10-12% 2-4%
Athletes 14-20% 6-13%
Fitness 21-24% 14-17%
Acceptable 25-31% 18-25%
Obese 32% + 25% +

Note: These calculations are based on averages.

How to take your measurements

For your chest, measure around the torso. Place the measuring tape just under your breasts/pecs and wrap it around your back.

For your bicep, measure around the widest part of your upper arm.

For your waist, measure around your torso starting at the navel.

For your forearm, measure around the fullest part below your elbows.

For your wrist, measure around the smallest point of the wrist just below your wrist bone.

For your hips, measure around the fullest part of the body at the top of the legs while standing.

For your thigh, measure around the fullest part of your upper leg while standing.

Tips for Taking ‘Before and After’ Photos:

Pictures speak louder than words. Before getting started with your TLS Plan, be sure to take 'before' photos. These photos will serve as a testimony to how far you’ve come, and how hard you’ve worked to achieve weight management success!

Check out our tips for taking before & after photos.