pregnancy weight gain by week

Free pregnancy weight gain calculator tool showing BMI-based weekly targets and trimester recommendations

Pregnancy & Fertility, Calculators

Pregnancy Weight Gain Calculator by Week and Trimester

Calculate your healthy pregnancy weight gain by week and trimester. Based on IOM & ACOG 2026 guidelines — personalised for your BMI, singleton or twins.

✓ EDUCATIONAL

Written & edited by: Sameer Patel — Founder & Editor Calculators built on published formulas Educational information — not a substitute for medical advice