Everyday tools
Fetal Weight Formula Calculator
Use Fetal Weight Formula Calculator online for free. Adjust the available options and process your data locally in your browser, with no installation or sign-up.
Your data is processed only in your browser
Features and usage
Enter your content or choose the options above, then review the result. Tool calculations run locally in your browser.
Available options
- Biparietal diameter BPD (cm)
- Head circumference HC (cm)
- Abdominal circumference AC (cm)
- Femur length FL (cm)
Scope and limitations
Estimates weight in grams with the four-parameter Hadlock formula using BPD, HC, AC and FL. All lengths are in cm. This is a formula calculation with measurement and model error; do not use it to assess fetal development or make medical decisions.