Estimate your TDEE during pregnancy. Understand calorie needs for each trimester and healthy weight gain targets.
Pregnancy increases calorie needs, but less than most people think. First trimester: no extra calories needed. Second trimester: +340 calories/day. Third trimester: +450 calories/day. Calculate your baseline TDEE first, then add the trimester-specific amount. Always consult your OB-GYN or midwife for personalized advice.
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Gender
If provided, uses the more accurate Katch-McArdle formula
Calorie needs for pregnant women vary based on age, weight, height, and activity level. The calculator above gives you a personalized TDEE. As a general range, most pregnant women need between 1,600 and 3,200 calories/day for maintenance.
The Mifflin-St Jeor equation used here is the most validated BMR formula for adults. For pregnant women, the estimate is a solid starting point — track your weight for 2–3 weeks and adjust up or down based on real results.
First trimester: no extra. Second trimester: ~340 extra calories/day. Third trimester: ~450 extra calories/day. These are general guidelines — your doctor may recommend more or less depending on your starting weight and health. This calculator gives a baseline; consult your healthcare provider.