Estimate daily pregnancy calorie needs with transparent calculation logic and educational guidance.
Estimated daily calorie intake
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This content is for general reference only and does not replace professional advice from your obstetrician or registered dietitian.
Sources: Mifflin-St Jeor BMR estimation, Institute of Medicine / NASEM pregnancy energy and weight gain references, WHO general maternal health principles, and ACOG general prenatal nutrition safety framing. This plan is educational only and is not medical advice.
Medical disclaimer: This tool is for educational and informational purposes only. It is not medical advice, does not diagnose, treat, prevent, or cure any condition, and cannot replace professional advice from an obstetrician, physician, registered dietitian, or qualified healthcare provider. The calculation and AI-style content use Mifflin-St Jeor BMR estimation, Institute of Medicine / NASEM pregnancy energy and weight gain references, WHO general maternal health principles, and ACOG general prenatal nutrition safety framing. Seek urgent medical care for severe symptoms, pregnancy complications, or any concern about your health or your baby.
This calculator estimates BMR with the Mifflin-St Jeor female equation, adjusts it by activity level, then adds pregnancy energy references based on Institute of Medicine / NASEM guidance. WHO general maternal health principles are used for safety framing. This site does not claim that Google officially approves any formula.
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Daily calorie needs during pregnancy depend on age, height, pre-pregnancy weight, activity level, trimester, and pregnancy type. This calculator estimates a reference range using BMR, activity level, and pregnancy energy references.
For many singleton pregnancies, common pregnancy energy references do not add extra daily calories in the first trimester. Individual needs can vary, so professional guidance is still important.
For singleton pregnancy, common IOM/NASEM-style pregnancy energy references use about 340 additional calories per day in the second trimester.
For singleton pregnancy, common IOM/NASEM-style pregnancy energy references use about 452 additional calories per day in the third trimester.
General singleton pregnancy weight gain references depend on pre-pregnancy BMI. This calculator provides educational reference text, but it cannot replace individualized guidance from an obstetrician or registered dietitian.
The calculator includes a conservative educational estimate for twin or multiple pregnancy, but calorie and weight gain needs vary widely. Professional guidance is especially important for multiple pregnancy.