Find the calculator you need
Browse 600+ clinical calculators — each with its own page, inputs, results, interpretation, and references.
Emergency medicine
Pulmonary embolism rule-out criteria (PERC)
Rule out pulmonary embolism in low-risk patients
Nephrology
Creatinine Clearance (Cockcroft-Gault Equation)
Estimate renal function from serum creatinine
Cardiology
CHA₂DS₂-VASc score for stroke risk in atrial fibrillation
Stroke risk in atrial fibrillation
Neurology
Glasgow Coma Scale (GCS)
Level of consciousness after head injury
Cardiology
HEART score for chest pain
Short-term cardiac risk in chest pain
Surgery
Caprini score for venous thromboembolism
Venous thromboembolism risk in surgical patients
Hepatology
Model for End-Stage Liver Disease (MELD)
Severity of end-stage liver disease
Hematology
Absolute Neutrophil Count (ANC)
Infection risk in patients on chemotherapy
Psychiatry
Patient Health Questionnaire-9 (PHQ-9)
Depression severity screening tool
Obstetrics
Apgar score
Newborn health assessment at birth
Obstetrics
Pregnancy Due Date Calculator
Estimated delivery date from LMP or conception
Psychiatry
Adult self-report scale for ADHD in major depressive disorder (ASRS v1.1)
ADHD symptom screening in adults
Neurology
NIH Stroke Scale (NIHSS)
Stroke severity and neurological deficit
Cardiology
LDL Calculated
Estimated LDL cholesterol via Friedewald equation
Critical care
Mean Arterial Pressure (MAP)
Average arterial pressure during one cardiac cycle
Emergency medicine
Ottawa Ankle Rule
Rule out ankle fracture without imaging
Pulmonology
Arterial Blood Gas Interpreter
Systematic ABG analysis and acid-base status
Obstetrics
Edinburgh Postnatal Depression Scale (EPDS)
Postpartum depression screening
Oncology
Eastern Cooperative Oncology Group performance status (ECOG score)
Functional status in cancer patients
Oncology
FIGO staging for ovarian cancer
Ovarian cancer staging by FIGO criteria
Oncology
Karnofsky Performance Scale
Functional impairment in cancer patients
Hepatology
Milan criteria for liver transplantation
Liver transplant eligibility in hepatocellular carcinoma
Hematology
Revised international staging system for multiple myeloma (R-ISS)
Prognosis in multiple myeloma
Oncology
MASCC Score for Febrile Neutropenia
Complication risk in febrile neutropenia
From score to next step
600+ clinical calculators that work on their own or inside Doximity Ask. Copy-and-paste your patient’s info for quick, HIPAA-compliant calculations and answers.
Ask any follow-up question.
Ask is clinical AI for physicians. Interpret a result, check it against the literature, or draft the note — all in one place. Free for verified U.S. clinicians.
Built for the point of care
Results as you type
Enter values and the result updates right away. Nothing to submit.
Evidence on every page
Each calculator lists its formula, interpretation and published references.
Free for U.S. physicians
Use every calculator for free. Sign in or create an account to save results and ask follow-up questions.
Save your results. Ask follow-up questions.
Create a free Doximity account to keep going with Ask. Free for verified U.S. clinicians.