Pregnancy Weight Gain Calculator

The Pregnancy Weight Gain Calculator estimates a schedule for healthy weight gain based on guidelines from the Institute of Medicine. This tool helps you track whether your weight gain is within the recommended range for your pregnancy stage and body type.

Your Height (Feet): (e.g., 5 for 5 feet)

Your Height (Inches): (e.g., 3 for 3 inches)

Your Weight Before Pregnancy (lbs):

Your Current Weight (lbs):

Your Current Pregnancy Stage (Weeks):

Pregnant with Twins: No Yes

Calculate

How the Pregnancy Weight Gain Calculator Works

This calculator uses guidelines from the Institute of Medicine to estimate healthy weight gain during pregnancy. It calculates your Body Mass Index (BMI) based on your height and pre-pregnancy weight, then provides recommendations tailored to your specific situation.

Understanding Your Results

The calculator shows three key pieces of information:

• Your BMI: This indicates whether you were underweight, normal weight, overweight, or obese before pregnancy.
• Recommended Weight Gain: The total weight you should aim to gain during your entire pregnancy.
• Current Weight Gain: How much you've gained so far compared to your pre-pregnancy weight.

Recommended Weight Gain Ranges

• Underweight (BMI < 18.5): 28-40 lbs (or 37-54 lbs for twins)
• Normal Weight (BMI 18.5-24.9): 25-35 lbs (or 37-54 lbs for twins)
• Overweight (BMI 25.0-29.9): 15-25 lbs (or 31-50 lbs for twins)
• Obese (BMI ≥ 30.0): 11-20 lbs (or 25-42 lbs for twins)

Weight Gain Distribution

Typical weight gain during pregnancy includes:

• Baby: 7-8 pounds
• Placenta: 1-2 pounds
• Amniotic fluid: 2 pounds
• Uterus: 2 pounds
• Breast tissue: 2 pounds
• Blood volume: 4 pounds
• Fluids: 4 pounds
• Maternal fat stores: 7 pounds

Note: These are general guidelines. Every pregnancy is different. Consult your healthcare provider for personalized advice about weight gain during your pregnancy.