Pregnancy Folate Needs Calculator

About this calculator

Folate requirements rise substantially in pregnancy because folate is essential for the neural tube closure that happens in the first weeks of gestation, and the recommended daily target depends on risk level — a standard-risk pregnancy typically targets around 600 mcg DFE (dietary folate equivalent) per day, while a higher-risk pregnancy (such as a prior neural tube defect or certain medications) calls for a substantially higher supplemental folic acid dose under clinical guidance. The calculation subtracts your estimated dietary folate intake from the target to find the supplemental gap.

Obstetric providers and pregnant patients use this kind of estimate when reviewing a prenatal vitamin's folic acid content against dietary intake, since prenatal vitamins vary in dosage and diet alone rarely reaches pregnancy-level folate targets, particularly in early pregnancy before most people even know they're pregnant, which is why folic acid supplementation is typically recommended starting before conception.

This calculator takes your pregnancy risk level and your current estimated dietary folate intake, and returns your daily folate target and the additional folic acid you'd need to add to reach it.