The BMI is calculated by dividing the weight in kilograms by the height in meters squared. Select "Compute BMI" and your BMI will appear below. The amount of weight gain that is appropriate for a pregnant woman varies according to the body mass index, as follows: For women with low pre-pregnancy weight, i.e. If your pre pregnancy weight was 'health normal', ie. Baby: 7-8 lb. Or, you can measure your height in metres and weight in kilograms. The imperial formula is (703*lbs)/in2, where lbs is a person's weight in pounds and in2 is their height in inches squared. We calculated it using a person's height and weight. Calculate Your Body Mass Index. 72 1.62 1.62 = 27. A child's BMI is expressed as a "centile" to show how their BMI compares with children who took part in . The body mass index (BMI) is a simple calculation based on height and weight. Body mass index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. Parity ranged from 0 to 6 (median = 2). Body mass index (BMI) was calculated using the formula: Weight in kilograms/ (height in metres) 2 Booking BMI was categorised as underweight (BMI 18.5), normal (BMI = 18.6-25.0), overweight (BMI = 25.1-30.0), and obese (BMI 30.1). Underweight - BMI less than 18.5. The BMI is used to indicate if a person is overweight, obese, or underweight. View BMI Table. Healthy recipes, exercise tips and activities, offers and promotions - everything to help you eat, move and feel better. (3-3.5 kg) Blood volume: 3-4 lb. very overweight - 98th centile or above. Objective: To estimate the risk of operative delivery according to maternal pre-pregnant body mass index (BMI) and gestational weight gain. Gestational weight gain below the IOM recommendations among overweight pregnant women does not appear to have a negative effect on . Here's what weight gain you might expect: If you were underweight before pregnancy, you should put on 12.4kg to 17.9kg (1st 13lb to 2st 11lb). Characteristics of the participating pregnancy cohorts are given in Table 1.Overall, the median maternal pre-pregnancy BMI and total gestational weight gain were 22.7 kg/m 2 (interquartile range 20.8-25.4 kg/m 2) and 14.0 kg (interquartile range 11.0-17.9 kg), respectively.The number of weight measurements during pregnancy available per participating cohort and per . Simply put, the body mass index (BMI) is a measure that uses your height and weight to work out if you are a healthy size and calculate your BMI measurement.