New BMI calculation

This website offers the calculation of the New BMI proposed by Professor L N Trefethen FRS. According to Prof. Trefethen, "perhaps this revised formula might reflect better than the standard one how the weights of healthy adults really depend on their heights." But he also states: "The new formulas proposed above are not based on epidemiological studies and they may not be a improvement, for all kinds of reasons.".

The "healthy range" of the new BMI is the same as for the traditional BMI: 18,5 to 25.

Please click here to make a calculation.

Another BMI alternative: ABSI

From "A New Body Shape Index Predicts Mortality Hazard Independently of Body Mass Index" by Nir Y. Krakauer and Jesse C. Krakauer:

"Body shape, as measured by ABSI, appears to be a substantial risk factor for premature mortality in the general population derivable from basic clinical measurements. ABSI expresses the excess risk from high WC (waist circumference) in a convenient form that is complementary to BMI and to other known risk factors."

Please click here to make a calculation.

Predict your child's height!

If you want a simple and convenient way to check your child's growth against the WHO Child Growth Standards, just go to The standards were developed using data collected in the WHO Multicentre Growth Reference Study. The site calculates and draws the physical growth curves for the specific age and dimensions of your child.

It only gives a very global indication of the dimensions that your child might reach later in life. The actual future height of your child can still be influenced by factors like your child's health, eating patterns, etc.