Health Calculators
Pregnancy Weight Gain Calculator
Calculate ideal pregnancy weight gain based on BMI.
What is the Pregnancy Weight Gain Calculator & How does it work?
Pregnancy weight gain is crucial for maternal and fetal health. The Pregnancy Weight Gain Calculator uses your pre-pregnancy Body Mass Index (BMI) to determine a healthy range of weight gain throughout pregnancy.According to the Institute of Medicine, women with a normal BMI (18.5-24.9) should aim for a total weight gain of 25-35 pounds over their pregnancy. Underweight women (BMI < 18.5) may need more weight gain, while overweight or obese women (BMI ≥ 25) should gain less.
G = begin{cases} 25-35text{ lbs}, & text{if BMI } 18.5-24.9 \ 28-40text{ lbs}, & text{if BMI } < 18.5 \ 15-25text{ lbs}, & text{if BMI } 25-29.9 \ 11-20text{ lbs}, & text{if BMI } geq 30 end{cases}
G = Recommended total weight gain in pounds
Parameters
kg
m
Recommended Weight Gain
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Target Weight Range
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Frequently Asked Questions
What is the recommended weight gain for women with a normal BMI during pregnancy?
Women with a normal BMI (18.5-24.9) should aim to gain between 25 and 35 pounds over their pregnancy.
How much weight should underweight women (BMI < 18.5) gain during pregnancy?
Underweight women may need to gain more weight, typically around 28-40 pounds.
What is the recommended weight gain for overweight or obese women (BMI ≥ 25) during pregnancy?
Overweight or obese women should aim to gain less weight, usually between 15 and 25 pounds.
How does the calculator determine my healthy weight gain range?
The calculator uses your pre-pregnancy BMI to determine a healthy range of weight gain throughout pregnancy.
Can I use this calculator if I am unsure about my pre-pregnancy BMI?
It's best to consult with a healthcare provider to determine your accurate pre-pregnancy BMI before using the calculator.
Results are for informational purposes only and do not constitute professional advice.