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Recently Added
NewBI-RADS Assessment (5th Edition)
American College of Radiology standardized breast imaging reporting. Final assessment categories with management recommendations.
Use Calculator →Calcium Score (Agatston)
Coronary artery calcium quantification from non-contrast cardiac CT with cardiovascular risk stratification.
Use Calculator →CURB-65 Score
Community-acquired pneumonia severity score. Stratifies patients for outpatient vs. inpatient management with 30-day mortality estimates.
Use Calculator →Radiology
Imaging & ScoringTI-RADS Calculator (ACR)
ACR TI-RADS thyroid nodule risk stratification. Score composition, echogenicity, shape, margin, and echogenic foci. Includes FNA guidance.
PI-RADS v2.1 Calculator
Prostate MRI risk stratification per PI-RADS v2.1. Score T2W, DWI, DCE by zone. Get overall assessment category and biopsy guidance.
BI-RADS Assessment (5th Ed.)
Standardized breast imaging reporting and data system. Assessment categories 0–6 with management recommendations per ACR guidelines.
Fleischner Criteria Calculator
2017 Fleischner Society guidelines for incidental pulmonary nodule management. Follow-up recommendations by nodule type, size, and risk.
Cardiology
Cardiovascular RiskCalcium Score (Agatston)
Coronary artery calcium quantification and cardiovascular risk stratification from non-contrast cardiac CT.
Use Calculator →ASCVD Risk Score (Pooled Cohort)
10-year atherosclerotic cardiovascular disease risk for primary prevention. Race- and sex-specific equations per ACC/AHA 2013 guidelines.
CHA₂DS₂-VASc Score
Stroke risk in non-valvular atrial fibrillation. Calculate annual stroke risk and anticoagulation recommendation per AHA/ACC 2023 guidelines.
HEART Score
Chest pain risk stratification in the ED. Estimates 6-week MACE risk and guides admission vs. early discharge decisions.
Emergency Medicine
Risk StratificationWells Score (DVT)
Pre-test probability for deep vein thrombosis. Score 9 clinical criteria to guide D-dimer vs. ultrasound decision per evidence-based guidelines.
Wells Score (PE)
Pre-test probability for pulmonary embolism. 2-level and 3-level stratification with CTPA vs. D-dimer workup recommendation.
Revised Geneva Score
Objective PE risk stratification using 8 clinical criteria. No subjective judgment required. D-dimer and CTPA decision guidance per risk tier.
CURB-65 Score
Community-acquired pneumonia severity. Stratifies patients for outpatient vs. inpatient management with 30-day mortality estimates.
PSI / PORT Score
Pneumonia Severity Index for community-acquired pneumonia. Two-step risk stratification yields Class I–V with 30-day mortality guidance.
General Medicine
Nephrology & WorkfloweGFR Calculator (CKD-EPI 2021)
Estimate glomerular filtration rate using the 2021 CKD-EPI equation. Includes CKD stage classification per KDIGO guidelines.
BMI Calculator
Body Mass Index using WHO classification. Supports metric and imperial units. Color-coded obesity class with ideal weight range.
wRVU Calculator
Radiology work RVU lookup by CPT code. Calculate total wRVUs and annualized projections for CT, MRI, X-ray, US, and IR procedures.
CT Radiation Dose Calculator
Convert CTDIvol and DLP to effective dose in mSv using ICRP conversion factors. Compare against ACR Dose Index Registry benchmarks.
MELD Score (+ MELD-Na)
Model for End-Stage Liver Disease. Calculate MELD and MELD-Na scores with 90-day mortality estimates and transplant listing context.
Child-Pugh Score
Hepatic function classification for cirrhosis. Get Child-Pugh class A/B/C with 1-year and 2-year survival estimates and perioperative risk.
Organ Volume Calculators
Ellipsoid FormulaOvary Volume Calculator
Calculate ovarian volume using the ellipsoid formula (L × W × H × 0.523). Normal ranges for premenopausal and postmenopausal women.
Testicular Volume Calculator
Ellipsoid formula for testicular volume in mL. Adult reference range with atrophy and enlargement thresholds.
Uterus Volume Calculator
Uterine volume by ellipsoid formula. Reference ranges by menopausal status and parity. Useful for fibroid monitoring.
Kidney Volume Calculator
Renal volume by ellipsoid formula. Normal adult reference ranges with ADPKD monitoring context.
Liver Volume Calculator
Hepatic volume by ellipsoid formula. Hepatomegaly thresholds with clinical context for surgical planning.
Spleen Volume Calculator
Splenic volume by ellipsoid formula. 4-tier splenomegaly classification: normal, mild, moderate, massive.
Why Radcalcs?
Built specifically for the clinical workflow.
Every calculator references the published guideline (KDIGO, ACR, ICRP, PI-RADS v2.1).
Designed for one-handed use on rounds. No pinch-zoom, no clunky tables.
Results update as you type. No submit buttons, no loading spinners.
All calculations happen in your browser. We never see patient data.