Pregnancy Weight Gain Calculator

See the recommended pregnancy weight gain range based on pre-pregnancy BMI.

Read the full Pregnancy Weight Gain Calculator guide →

Height — feetHeight — inchesPre-pregnancy weight(lb)Current week

How the Pregnancy Weight Gain Calculator works

Recommended gain depends on where you started. Institute of Medicine guidelines set different ranges for underweight, normal, overweight and obese pre-pregnancy BMI — one number does not fit everyone.