Pregnancy Calorie Calculator

This works out daily energy needs in pregnancy using the Dietary Reference Intake equations rather than a rule of thumb. Enter your age, height, pre-pregnancy weight, activity level and trimester and it returns the Estimated Energy Requirement for your size, the published increment for that trimester, and the two together, along with the equation it used so the figure can be checked. The increments are the DRI ones: nothing in the first trimester, 340 kcal a day in the second and 452 in the third, each built from 8 kcal per week of gestation plus 180 kcal a day of tissue deposition. A second action adds the same increment to a maintenance figure you already have. There is no published requirement for twins, so none is guessed at, and nothing here replaces the clinician managing the pregnancy.