Breastfeeding Calorie Calculator
Calculate extra daily calories needed while breastfeeding based on number of sessions and duration. See your total daily calorie target.
Part of our Health Calculators collection.
Breastfeeding Calorie Calculator
Free online calculator
Use the Calorie/TDEE Calculator
Results update automatically as you type
How to Use This Calculator
- 1
Enter nursing frequency and duration.
- 2
Enter your baseline TDEE.
- 3
See extra calories needed and daily total.
Breastfeeding Calorie Formula
Milk production: ~1.5 oz per 10 min nursing Calories per oz of breast milk: ~20 cal Extra calories = Daily oz produced × 20 CDC recommends 330–500 extra cal/day for breastfeeding. Don't restrict below total = TDEE + 500 cal.
Example Calculation
Example: 8 sessions, 15 min each, 2000 TDEE
Inputs
sessionsPerDay: 8minutesPerSession: 15baseTDEE: 2000
Result
+360 cal/day | Total: 2,360 cal
8 sessions × 1.5 oz/10min × 15 min × 20 cal/oz = 360 extra.
Frequently Asked Questions
Can I diet while breastfeeding?
Mild calorie restriction (250–500 cal deficit) is generally safe after the first 6 weeks and doesn't significantly affect milk supply or quality for well-nourished mothers. Never go below 1,800 cal/day while breastfeeding.
Why am I not losing weight while breastfeeding?
Some women retain 5–10 lbs of fluid stores specifically for lactation. Weight often drops when weaning. Hunger from breastfeeding can also lead to overeating. Focus on nutrient quality and gentle movement.