Breastfeeding Calorie Calculator

kcal/day
Use the TDEE calculator to find this.
Health Updated 14 Jun 2026

Estimate how many calories you need each day while breastfeeding. Enter your maintenance calories (TDEE) and choose your nursing level to see your total daily target, the extra calories for milk production, and a gentle weight-loss option.

Formula

Total = Maintenance calories + breastfeeding allowance (Exclusive ≈ +500, Partial ≈ +330, Occasional ≈ +150 kcal/day)
  • Milk production burns extra energy, so you add an allowance on top of your normal maintenance calories (TDEE).
  • Exclusive breastfeeding adds about 500 kcal/day, partial about 330, and occasional about 150 — reflecting how much milk you produce.
  • For gradual post-partum weight loss, your body can supply roughly 170 kcal/day from fat stores, lowering the eating target slightly.
  • A floor of about 1,800 kcal/day is applied so intake stays high enough to protect milk supply.
  • These are general estimates — your needs vary with body size, activity, and baby's intake.

2,000 kcal maintenance, exclusive nursing

Inputs
  • Your maintenance calories (TDEE): 2000 kcal/day
  • Breastfeeding level: exclusive

Exclusive breastfeeding adds about 500 kcal, giving a total of 2,500 kcal/day; for gentle weight loss you might target around 2,330 kcal/day.

Frequently asked questions

How many extra calories do I need while breastfeeding?
Roughly 500 extra kcal/day for exclusive nursing, tapering to about 330 for partial and 150 for occasional feeding as milk production decreases.
Can I lose weight while breastfeeding?
Yes, gradually. Your fat stores supply some energy for milk, so a modest deficit can support slow weight loss without harming supply — avoid very low intakes.
What is the minimum I should eat?
Most guidance suggests staying above about 1,800 kcal/day while nursing to maintain milk supply and your own energy.
How do I find my maintenance calories?
Use a TDEE calculator, which estimates the calories you burn each day from your body size and activity level, then add the breastfeeding allowance.

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