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 →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 →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.
Browse the complete calculator library
Return to our homepage to explore every health, fitness, cardiovascular, clinical, peptide, and conversion tool.