PregnancyCalc.comPregnancy Calculators
After Baby Weight Loss
Post Pregnancy Weight Loss Calculator
Calculate how much weight you need to lose to return to your pre-pregnancy weight, with realistic 12-week and 6-month milestones.
Realistic timeline
12-week milestone
6-month goal
Post Pregnancy Weight Loss Calculator — Your Post-Baby Weight Loss Target
Enter your pre-pregnancy weight and current weight for a realistic loss target and milestones.
⚠ This calculator uses ACOG (American College of Obstetricians and Gynecologists) guidelines. Always follow your healthcare provider’s advice for your specific pregnancy.
Weight to Lose
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To reach pre-pregnancy weight
Expected at 12 Weeks
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Typical 60% of total
Expected at 6 Months
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Typical 85% of total
Most women lose 10-13 lbs immediately after birth (baby, placenta, amniotic fluid). The remainder comes from gradual lifestyle changes. Breastfeeding burns 300-500 extra calories per day.
Post Pregnancy Weight Loss Calculator — Key Information
Immediate LossMost women lose 10-13 lbs immediately after birth: baby, placenta and fluids.
Water WeightAdditional fluid retained during pregnancy is typically lost in the first 1-2 weeks.
Realistic TimelineMost women return to pre-pregnancy weight within 6-12 months.
BreastfeedingBurns 300-500 extra calories per day and can accelerate weight loss.
No Crash DietsExtreme calorie restriction after birth is not recommended.
Exercise TimingWait 6-8 weeks before returning to strenuous exercise after vaginal birth.