CalcNest AI

Pregnancy Weight Gain Calculator

See the recommended weight gain range during pregnancy based on your pre-pregnancy BMI.

About Pregnancy Weight Gain Calculator

See the recommended weight gain range during pregnancy based on your pre-pregnancy BMI.

Formula

Based on pre-pregnancy BMI category (IOM Guidelines)

Example

BMI 23 at week 20 → Expected gain 5.8–8.0 kg so far (total 11.5–16 kg).

How to Use

Enter your values in the fields above and click "Calculate" to get instant results. All calculations happen in your browser — nothing is sent to any server.

Frequently Asked Questions

What is Pregnancy Weight Gain Calculator?
See the recommended weight gain range during pregnancy based on your pre-pregnancy BMI.

What formula does this use?
This calculator uses: Based on pre-pregnancy BMI category (IOM Guidelines)

Is this calculator free?
Yes! All calculators on CalcNest AI are 100% free with no account required.

Is my data safe?
Absolutely. All calculations run locally in your browser. We never store or transmit your input data.

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