Pregnancy Weight Gain Calculator
See the recommended weight gain range for your pregnancy based on your pre-pregnancy BMI, following IOM (Institute of Medicine) guidelines. Track expected weight gain by trimester and week.
Inputs
Results
Recommended Total Gain
25-35 lbs
Expected at Current Week
7.7-13.3 lbs
BMI Category
Normal Weight
Pre-pregnancy BMI: 23.3
Weekly Rate (2nd/3rd tri)
~1 lb/week
Expected Weight Range by Week
Weight Gain by Trimester
| Trimester | Min Gain (lbs) | Max Gain (lbs) |
|---|---|---|
| First (1-13) | 1 | 5 |
| Second (14-26) | 11 | 16 |
| Third (27-40) | 11 | 16 |
Last updated: Reviewed by the CalcMountain editorial team
Frequently Asked Questions
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