Pregnancy Weight Gain Calculator

This free **pregnancy weight gain calculator** helps you determine the recommended **healthy pregnancy weight gain** according to your pre-pregnancy BMI and trimester.

Pre-pregnancy Weight (kg) Height (cm) Current Trimester 1st Trimester 2nd Trimester 3rd Trimester

How This Calculator Works

The tool first calculates your **BMI** and then applies official **pregnancy weight chart** guidelines. Based on your trimester, it shows how much weight gain is recommended for a healthy pregnancy.

Example:

If your pre-pregnancy BMI was 22 (normal range):

• 1st Trimester → 0.5–2 kg
• 2nd & 3rd Trimester → ~0.4 kg per week
• Total → 11.5–16 kg over full pregnancy

Note: This tool provides estimates. Always consult your doctor for personal advice.