• Please use the millimeter (mm) values from your most recent ultrasound report.
• The calculation is based on the Hadlock formula, with an error margin of approximately ±10%, for reference only.
• If the estimated weight is high or low, please consult your obstetrician.
| Gestational Week | Average Weight (g) |
|---|---|
| 28 Weeks | 1000~1200 |
| 32 Weeks | 1800~2000 |
| 36 Weeks | 2500~2800 |
| 40 Weeks | 3000~3500 |