Free Pregnancy Weight Gain Calculator
Recommended pregnancy weight gain range.
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Inputs
Result
Recommended gain
25–35 lb
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Short answer
Recommended pregnancy weight gain range.
What is the Pregnancy Weight Gain Calculator?
Recommended pregnancy weight gain range.
How does the Pregnancy Weight Gain Calculator work?
Enter the inputs above and read the result.
Formula
Variables
BMIPre-pregnancy BMI
Explanation
Based on Institute of Medicine (IOM) pregnancy weight-gain recommendations.
Examples
Applications
Advantages
Limitations
Common mistakes
Tips
Related concepts
The Pregnancy Weight Gain Calculator sits inside the Health Calculators hub, in the pregnancy & women's health cluster. Cycle, conception and gestation timelines. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.
Practical use cases and industry applications
Understanding Pregnancy Weight Gain
Recommended pregnancy weight gain range. Within health calculators, pregnancy weight gain belongs to the pregnancy & women's health cluster, where it shares terminology and assumptions with closely related tools.
Learning how pregnancy weight gain is calculated
Based on Institute of Medicine (IOM) pregnancy weight-gain recommendations. Working through the variables one at a time — BMI — makes the result reproducible by hand and easier to sanity-check.
Using pregnancy weight gain to make a decision
Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.
How pregnancy weight gain compares with related measures
gestational age, luteal phase, fertile window, trimester all describe adjacent aspects of pregnancy & women's health. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.
Frequently asked questions
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