Pregnancy Weight Gain Calculator
Recommended gain by BMI and week.
Enter your values
Results update instantly as you type — no submit needed.
Results
- Recommended total gain
- 11.5–16 kg
- Pre-pregnancy BMI
- 23.1
- Expected gain by week 24
- 5.3–7.7 kg
- Gained so far
- 7 kg
- Status
- On track
Quick answer
Recommended gain depends on pre-pregnancy BMI: 25–35 lb for normal weight, less if overweight.
How to use the Pregnancy Weight Gain Calculator
- 1Enter your pre-pregnancy weight and height.
- 2Enter your current week of pregnancy.
- 3Enter your current weight.
Frequently asked questions
Do twins change this?
Yes — recommended gain is roughly 17–25 kg for twins at normal BMI.
Is gaining slowly a problem?
Discuss any consistent deviation with your midwife or doctor.