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Pregnancy Weight Gain Calculator – Estimates a healthy pregnancy weight gain range...

The Pregnancy Weight Gain Calculator estimates a healthy pregnancy weight gain range based on pre-pregnancy BMI. This Pregnancy Weight Gain Calculator uses an established clinical or fitness formula to give you a personalised estimate in seconds. Results are for educational reference — for specific health decisions, discuss with your doctor.

The formula behind this calculator: IOM guidelines recommend different total gain ranges depending on whether pre-pregnancy BMI was underweight, normal, overweight, or obese. As a practical example: A normal pre-pregnancy BMI typically supports a recommended gain of 25-35 lbs. All results are calculated instantly in your browser — no data is stored or transmitted.

Pregnancy Weight Gain Calculator FAQ

What does the Pregnancy Weight Gain Calculator calculate?

Estimates a healthy pregnancy weight gain range based on pre-pregnancy BMI.

Can this calculator track my progress over time?

This tool doesn't store data between sessions. For tracking, record results manually or use a health app alongside this calculator.

Is this a substitute for medical advice?

No. These calculators provide general estimates for educational purposes only. Always consult a doctor or qualified health professional for medical decisions.

Does this work on mobile?

Yes — fully responsive and optimised for smartphones, tablets, and desktop browsers.