Calculateur de Prise de Poids Grossesse — Formule

## IOM Pregnancy Weight Gain Guidelines

| Pre-Pregnancy BMI | Recommended Gain |
|---|---|
| Underweight (<18.5) | 28-40 lbs |
| Normal (18.5-24.9) | 25-35 lbs |
| Overweight (25-29.9) | 15-25 lbs |
| Obese (30+) | 11-20 lbs |

Most weight gain occurs in the second and third trimesters, with about 1-2 lbs per week being typical for normal-weight women.

Exemple Résolu

A 140 lb, 65-inch tall woman at 20 weeks pregnant.

  1. Pre-pregnancy BMI = (140 x 703) / (65 x 65) = 23.3 (Normal)
  2. Recommended total gain = 25-35 lbs
  3. Expected by week 20 = 25 x 0.25 + (25 x 0.75) x 7/27 = 6.25 + 4.9 = 11.1 lbs (low end)