Free · Browser-Based · Pregnancy Planning

Pregnancy Weight Gain Calculator

Estimate a guideline weight-gain range for a singleton pregnancy using pre-pregnancy BMI and current pregnancy week.

Pre-pregnancy height (cm)

Pre-pregnancy weight (kg)

Current pregnancy week

Pregnancy type

Pregnancy gain summary

🎯 Common Use Cases

Check guideline weight-gain range

Review BMI-based pregnancy advice

Estimate expected gain by week

Prepare discussion points for prenatal visits

Is this medical advice?

No. It is a guideline estimate based on common singleton-pregnancy ranges.

Does it support twins?

No. This version is for singleton pregnancy guidance only.

Does it run locally?

Yes. All calculations are done in your browser.