Cardiovascular Calculators
Use evidence-based tools for cholesterol and cardiovascular prevention, blood pressure and perfusion, acute chest-pain scoring, corrected QT intervals, blood flow, aerobic fitness, and heart-rate training. Each calculator explains its formula, intended population, and limits.
Heart and cardiovascular tools
ASCVD Risk Calculator
Estimate 10-year atherosclerotic cardiovascular disease risk with the site’s primary prevention tool.
Open calculator →Framingham Risk Score Calculator
Estimate 10-year cardiovascular disease risk and vascular heart age with lipid and BMI models.
Open calculator →LDL Cholesterol Calculator
Estimate LDL-C with Sampson and Friedewald formulas, non-HDL cholesterol, unit conversion, and lipid ratios.
Open calculator →HEART Score for Chest Pain
Score History, ECG, Age, Risk factors, and Troponin for short-term MACE risk context.
Open calculator →TIMI Risk Score Calculator
Stratify 14-day adverse cardiac events in UA/NSTEMI and 30-day mortality in STEMI with guideline pathways.
Open calculator →GRACE Score Calculator
Stratify in-hospital and 6-month mortality in acute coronary syndromes (NSTEMI/STEMI) with ACC/AHA catheterization timing pathways.
Open calculator →Wells Score Calculator
Stratify pre-test probability for Pulmonary Embolism and Deep Vein Thrombosis with age-adjusted D-dimer and imaging pathways.
Open calculator →CHA₂DS₂-VASc Score Calculator
Calculate stroke risk in atrial fibrillation with consensus DOAC and anticoagulation guidance.
Open calculator →HAS-BLED Score Calculator
Calculate 1-year major bleeding risk in atrial fibrillation to identify and correct modifiable bleeding hazards.
Open calculator →QTc Calculator
Calculate corrected QT with Bazett, Fridericia, Framingham, and Hodges formulas.
Open calculator →Cardiac Output Calculator
Calculate cardiac output using HR × SV, direct Fick, or echo LVOT and VTI methods.
Open calculator →Mean Arterial Pressure Calculator
Estimate MAP and pulse pressure from systolic and diastolic blood pressure with transparent working.
Open calculator →VO₂ Max Calculator
Estimate aerobic capacity and compare oxygen-use results with age and sex context.
Open calculator →Fat-Burning Heart Rate Calculator
Estimate exercise heart-rate zones from age and resting heart rate.
Open calculator →Waist-to-Hip Ratio Calculator
Compare waist and hip measurements for general adult body-fat distribution context.
Open calculator →Choose the calculator that matches your question
Use LDL for a calculated lipid-panel estimate, ASCVD for long-term primary-prevention risk, MAP for an average arterial-pressure estimate, HEART for adult emergency chest-pain stratification, QTc for heart-rate correction of a measured QT interval, and cardiac output for blood flow per minute. VO₂ max and heart-rate zones focus on exercise, while waist-to-hip ratio is a general body-fat distribution measure.
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