hCG Dpo Calculator

Estimate days past ovulation from an estimated ovulation date and a test date.

How the hcg dpo calculator works

DPO = calendar days between the estimated ovulation date and the test date. The result depends on how accurately ovulation was identified and does not confirm pregnancy.

Example and useful facts

Example: Estimate days past ovulation from an estimated ovulation date and a test date. Enter the sample values above, then change one input at a time to see how the result changes.

Formula and assumptions: DPO = calendar days between the estimated ovulation date and the test date. The result depends on how accurately ovulation was identified and does not confirm pregnancy.

Did you know? Ovulation estimates from apps can be off by several days. Pregnancy tests and clinical guidance are more informative than a DPO number alone.

Frequently asked questions

What does the hcg dpo calculator calculate?

Estimate days past ovulation from an estimated ovulation date and a test date.

Are the results exact?

The result follows the formula and assumptions shown on this page. Real-world rules, measurements, rates, and individual circumstances can affect the final answer.

Results are estimates for general information only. They are not a substitute for professional advice where applicable. Found a mistake? Report an error.