RadCalc is a free collection of evidence-based clinical calculators built for physicians and radiologists. Every tool is grounded in published guidelines and designed for real clinical workflows — fast, mobile-optimized, and free from clutter.
Clinical decision support tools should be free, fast, and accurate. RadCalc exists because the best clinical calculators online are often slow, cluttered with ads, or built on outdated equations. We're building the resource we wished existed during training and clinical practice.
All calculations are performed in your browser. No patient data is ever transmitted to our servers — period.
Every calculator cites the source guideline (KDIGO, ACR, ICRP, PI-RADS v2.1).
Designed for one-handed use on rounds. No pinch-zoom required.
Results update as you type. No submit buttons, no loading states.
All math runs in your browser. Zero patient data leaves your device.
eGFR Calculator — CKD-EPI 2021 equation (race-free). CKD stage classification per KDIGO 2022.
wRVU Calculator — Radiology CPT code lookup with 2024 CMS wRVU values and annual projection.
CT Dose Calculator — DLP to effective dose (mSv) using ICRP 103 conversion factors, with ACR DIR benchmark comparison.
TI-RADS Calculator — ACR TI-RADS thyroid nodule scoring with FNA/follow-up thresholds.
PI-RADS Calculator — PI-RADS v2.1 prostate MRI assessment categories with biopsy guidance.
All calculators are for informational and educational purposes only. Results must be interpreted by a qualified healthcare professional in the context of the full clinical picture. Not a substitute for clinical judgment or formal medical advice. Always verify calculations with current guidelines and your clinical team.
Questions or corrections? Email radbridge@polsia.app. We welcome clinician feedback on calculator accuracy and feature requests.