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ShapeUpAmerica.com is for informational purposes only. The calculators and tools provided are not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.

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CalculatorsMaternity & ReproductivePregnancy Weight Gain
Verified Formula
Added New

Pregnancy Weight Gain

Track healthy weight milestones by trimester.

Biometric Inputs

Real-time clinical computation active

Awaiting Data
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Enter biometric metrics to generate report

This assessment provides statistical probability and mathematical interpretation based on validated clinical equations. It is not a diagnostic tool.

Scientific Context

Provides a personalized weight gain roadmap based on your pre-pregnancy BMI. Following clinical weight gain guidelines is associated with better outcomes for both mother and baby, reducing risks for gestational diabetes and birth complications.

Mathematical Formula

IOM / ACOG BMI-Based Guidelines

Behind the Math

The current guidelines were established by the Institute of Medicine (IOM) in 2009, moving away from a 'one size fits all' approach to recognizing that starting BMI is the primary driver of healthy gain.

Expert Tip

Focus on the quality of calories rather than just the number. An extra 300-400 nutrient-dense calories per day in the second and third trimesters is usually all that's required.

Primary Use
Health Screening
Standard
WHO Guidelines
Complexity
Clinical Grade

Frequently Asked Questions

Metric Recommendations

Pregnancy Due Date

Estimate your delivery date using Naegele's rule.

BMI Calculator

Standard body mass index calculation with clinical classification.

Ovulation & Fertility

Identify your most fertile window for conception.

Menopause Symptom Scale

Quantify the severity of menopausal transitions.

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