hCG Doubling Time Calculator

Calculates beta-hCG doubling time in early pregnancy to assess viability and differentiate ectopic from intrauterine pregnancy.

mIU/mL
Initial beta-hCG level.
mIU/mL
Follow-up beta-hCG level.
weeks
If known, helps refine interpretation.

Enter values and click Calculate to see results

References

  1. Serial hCG monitoring in early pregnancy. ACOG (2020). Link
  2. Human chorionic gonadotropin as a predictor of pregnancy outcome. Obstetrics & Gynecology (2012). Link