Kanish Calculator contains Two buttons that will help you do the following 

This calculator is a health Calculator that computes the Body Fat which is  is the total mass of fat divided by total body mass of body fat includes essential body fat and storage body fat. Essential body fat is necessary to maintain life and reproductive functions. Oxygen Combustion and Blood Pressure is a readings have two numbers. The top number is your systolic blood pressure while the bottom one is your diastolic blood pressure and the waist to hip ratio  is the ratio of your waist circumference to your hip circumference (calculated by dividing the waist circumference by the hip circumference). WHR is a measurement tool that looks at the proportion of fat stored on your waist, and hips

Equation hii hutumika kwa mahesabu ya faida kutokana na mapato na gharama