The Pregnancy Weight Gain Calculator estimates a healthy weight gain schedule on a week-by-week basis based on pre-pregnancy body weight and IOM (Institute of Medicine) guidelines.
Enter your stage and pre-pregnancy measurements, then click Calculate
Weight Gain Recommendation
Normal Weight
Recommended Range for Week #20
127.3 - 132.3 lbs
Your current weight is in this healthy recommended range.
The estimate relates prepregnancy body mass index and gestational week to modeled pregnancy weight-gain reference ranges.
Example to check
At 60 kg and 1.65 m before pregnancy, BMI is approximately 22.0. That is a starting input for the selected model, not a weight-gain prescription.
Before using the result
A chart cannot assess fetal growth or maternal health. Multiple pregnancy, fluid changes, medical conditions and individual circumstances need prenatal clinical review.