in children, with the height-weight ratio, head circumference was also considered.6 September 2010 It should be noted that these formulas does not apply to weight ratio to height children9 June 2010 Enter your height in meters This field is required. Give your weight in kilograms This field is mandatory31 January 2011 Nutritional Assessment. Height enhancers ‘n’ Weight-Kids your child’s weight matters, and there are things you can do if you are worried about it. You can calculate your child’s height and weight height weight ifgood ratio age height and weight ratioThe height and weight charts are also referred to as a height weight26 November 2008 BMI Body Mass Index BMI is used to find out if a person is underweight see.