BMI Health Calculator

Calculates gestational age, due date, BMI, and IOM weight-gain guidance. Consult your healthcare provider for medical decisions.

How to use
  1. Select metric or imperial units.
  2. Enter LMP date, height, and weight.
  3. Results update automatically; drag the week slider to preview gain.
  4. Use Copy, PDF, or CSV to save results.
First day of your last period

Week 20 β€” drag to adjust

Enter LMP, height, and weight.