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PSA Doubling Time Calculator – Prostate Cancer Progression
Calculate PSA Doubling Time (PSADT) from two sequential PSA measurements
Urology Guidelines: PSA Doubling Time (PSADT) measures how rapidly serum PSA levels rise over time using the logarithmic formula: $\text{PSADT} = (t \times \log(2)) / (\log(\text{PSA}_2) - \log(\text{PSA}_1))$. Enter two sequential PSA values and the time elapsed in months below.
Sequential PSA Parameters Input
Calculation Results
⚠️ Not medical advice. For urology, oncology, and clinical reference only. PSA doubling time analysis and recurrence monitoring must be supervised and interpreted strictly by a qualified urologist or oncologist.