Hcg Calculator
Calculate the doubling time and expected HCG levels based on initial and follow-up HCG values. Useful for monitoring early pregnancy progression.
Published by:
isCalculator Editorial Team
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How to use this tool?
This calculator estimates the doubling time of hCG levels and predicts the expected hCG after 48 hours. Use it to monitor early pregnancy progression.
- Enter Initial HCG – Type the first hCG level in mIU/mL (e.g., 100).
- Enter Follow-up HCG – Type the second hCG level in mIU/mL (e.g., 200).
- Enter Time Between Tests – Provide the exact number of hours between the two blood draws (e.g., 48).
- Click "Calculate" – The result shows:
- Doubling time in hours.
- Expected hCG after 48 hours based on the calculated doubling rate.
Important: All inputs must be positive numbers. The follow-up hCG must be higher than the initial value for a valid calculation. Use the same units (mIU/mL) for both levels.
Previous Results
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Frequently Asked Questions
HCG doubling time is the time it takes for the level of human chorionic gonadotropin (HCG) to double in early pregnancy. It is used to assess pregnancy viability.
In early pregnancy, HCG levels typically double every 48 to 72 hours. A doubling time of less than 48 hours is often associated with a healthy pregnancy.
No, this calculator is for informational purposes only. Always consult a healthcare provider for medical advice.
