태아 체중 추정 계산기

Unit

Gestational weeks (optional) weeks

양정경 BPD 센티미터(cm)

두위 HC 센티미터(cm)

복위 AC 센티미터(cm)

대퇴골 길이 FL 센티미터(cm)

다중 공식 평균: -

Error range: -

GA reference (P10-P90): -

Assessment: -

참고 임신 주수: -

Hadlock(AC+FL): -

Hadlock (BPD+AC+FL): -

Hadlock(HC+AC+FL): -

Hadlock(BPD+HC+AC+FL): -

Shepard 공식: -

Advice: -

Fetal Weight Calculator

Estimate fetal weight (EFW) from ultrasound biometry using Hadlock and Shepard formulas. Supports cm/mm, optional gestational age with approximate P10–P90 reference, and a simple small/normal/large tip. For reference only—not a diagnosis.

Inputs

AC is most important for weight; AC+FL or BPD+AC is enough to compute.
Adding BPD/HC enables more Hadlock variants.

Notes

Typical ultrasound EFW error is about ±10–15%.
Growth trend across visits matters more than one estimate.
All calculations run locally in your browser.

Disclaimer: Consult your obstetrician for clinical decisions.