Most Popular Risk & Prevention Calculators
Life Expectancy Calculator
Free life expectancy calculator estimates your lifespan from 10 health factors. See your longevity score, which habits add or subtract years, and quick wins.
Most Accurate Life Expectancy Calculator
Use the most accurate life expectancy calculator based on validated models. This evidence‑based calculator clarifies factors and scope with clear assumptions.
ASCVD Risk Calculator
Calculate your 10-year ASCVD risk with the free ASCVD risk calculator. Uses Pooled Cohort Equations with what-if scenarios and ACC/AHA risk categories.
UV Index Calculator
Free UV index calculator estimates your sunburn time by skin type, SPF, clouds, altitude and surface. See burn time tables and safe sun exposure guidance.
Relative Humidity Calculator
Free relative humidity calculator finds dew point, absolute humidity, and comfort level from temperature. Check condensation risk and indoor mold prevention.
Pooled Cohort Equations Calculator
Free pooled cohort equations calculator (PCE) estimates 10-year ASCVD risk from cholesterol, blood pressure, and smoking, with visual ACC/AHA risk tiers.
All Risk & Prevention Calculators
Showing 36 of 36 calculators
Adult Vaccination Schedule Calculator
Use the adult vaccination schedule calculator to see age‑ and risk‑based recommendations. Review boosters, travel needs, and timing with a printable plan.
Age Calculator
Use our age calculator to find your exact age in years, months and days. See totals in days, weeks, hours and minutes, compare ages and plan dates. No sign‑in.
Air Quality Calculator
Calculate AQI from PM2.5, PM10, and O₃ with our air quality calculator. Get color‑coded categories, activity guidance, and smart tips for masks and ventilation.
Allergen Calculator for Pollen Count & Allergy Levels
Check local pollen levels and likely triggers with the Allergen Calculator. See allergen risk tiers, plan for high‑risk days, and get prevention tips.
Pooled Cohort Equations Calculator
Free pooled cohort equations calculator (PCE) estimates 10-year ASCVD risk from cholesterol, blood pressure, and smoking, with visual ACC/AHA risk tiers.
ASCVD Risk Calculator
Calculate your 10-year ASCVD risk with the free ASCVD risk calculator. Uses Pooled Cohort Equations with what-if scenarios and ACC/AHA risk categories.
Barthel Index Calculator
Free Barthel Index calculator scoring all 10 activities of daily living on the original and modified scales, with dependency bands and domain sub-scores.
Biological Age Calculator
Use our biological age calculator to estimate your health age from BMI, waist‑to‑height ratio, heart rate, sleep, and activity—with clear tips to act.
Cancer Risk Calculator
Use our Cancer Risk Calculator to review risk factors, see simple prevention tips, and prepare questions for your clinician. Private, fast, mobile friendly.
Cardiac Risk Calculator
Use the Cardiac Risk Calculator to estimate 10‑year cardiovascular risk with Framingham scoring. Enter cholesterol, HDL, systolic BP, smoking, and diabetes.
CHA2DS2-VASc Calculator
Free CHA2DS2-VASc calculator giving your annual AFib stroke risk, the 2024 ESC CHA2DS2-VA score, number needed to treat, and both guideline thresholds.
Chronological Age Calculator
Enter a birthdate to get your chronological age in years, months, and days. The chronological age calculator also shows next birthday and differences.
Diabetes Risk Calculator (Type 2)
Estimate your risk of Type 2 diabetes with the Diabetes Risk Calculator using simple factors. Review risk tiers and get lifestyle tips you can apply now.
Falls Risk Calculator
Free falls risk calculator scoring the CDC STEADI questionnaire and the Morse Fall Scale, with timed tests, medication flags and an evidence-ranked plan.
Fitness Age Calculator
Estimate your fitness age from VO₂ max, resting heart rate, and activity using the fitness age calculator. See results, context, and training suggestions.
Glasgow Coma Scale Calculator
Free Glasgow Coma Scale calculator scoring eye, verbal and motor response from 3 to 15, with mild, moderate and severe brain injury bands and pediatric notes.
Health Age Calculator
Understand how lifestyle factors affect your health age with the health age calculator. Review risk areas, sleep and stress, and get suggestions to improve.
Health Risk Calculator
Review lifestyle factors with the health risk calculator to see your risk profile. Get a personalized snapshot with clear next steps and improvement tips.
Heart Disease Risk Calculator
Estimate your 10‑year heart disease risk with the Heart Disease Risk Calculator. Enter age, blood pressure, cholesterol, smoking, diabetes to get a risk tier.
Heat Index Calculator
Determine the feels‑like temperature and associated risks with the heat index calculator. See risk categories, hydration advice, and scheduling guidance.
Relative Humidity Calculator
Free relative humidity calculator finds dew point, absolute humidity, and comfort level from temperature. Check condensation risk and indoor mold prevention.
Life Expectancy Calculator
Free life expectancy calculator estimates your lifespan from 10 health factors. See your longevity score, which habits add or subtract years, and quick wins.
Most Accurate Life Expectancy Calculator
Use the most accurate life expectancy calculator based on validated models. This evidence‑based calculator clarifies factors and scope with clear assumptions.
Pack Year Calculator
Free pack year calculator multiplying packs per day by years smoked to grade cumulative tobacco exposure and check lung cancer screening eligibility rules.
Pollution Exposure Calculator
Estimate daily pollutant dose from indoor and outdoor activity with the pollution exposure calculator. Model time‑weighted exposure and review mitigation steps.
PREVENT Risk Calculator
Free PREVENT risk calculator using the AHA 2023 equations to estimate 10-year and 30-year cardiovascular, heart failure and stroke risk for ages 30 to 79.
RCRI Calculator
Free RCRI calculator scoring the Revised Cardiac Risk Index to estimate major cardiac complications after noncardiac surgery from six clinical predictors.
Real Age Calculator
Get a personalized real age estimate from lifestyle and health inputs with the real age calculator. See a health score, risk cues, and improvement suggestions.
Reynolds Risk Score Calculator
Free Reynolds risk score calculator: add hs-CRP and family history to lipids and blood pressure for a sex-specific 10-year cardiovascular risk estimate.
Skin Cancer Risk Calculator
Free skin cancer risk calculator: score melanoma and basal cell risk from Fitzpatrick skin type, mole count, blistering sunburns, sunbeds and family history.
SOFA Score Calculator
Calculate the original SOFA score across six organ systems. See the 0–24 total, organ breakdown and change from baseline, with criteria and Sepsis-3 context.
Stroke Risk Calculator
Free stroke risk calculator for adults with atrial fibrillation. Estimate your risk tier from age, blood pressure and health history, plus prevention steps.
Travel Vaccine Calculator
Use our travel vaccine calculator to see region‑based recommendations, entry notes, and lead times. Enter dates and activities to build a pre‑departure plan.
UV Index Calculator
Free UV index calculator estimates your sunburn time by skin type, SPF, clouds, altitude and surface. See burn time tables and safe sun exposure guidance.
Wells Criteria Calculator
Free Wells criteria calculator for DVT and pulmonary embolism. Score the 10 DVT or 7 PE criteria, get your risk tier, and see if you need D-dimer or imaging.
Wind Chill Calculator
Estimate wind chill (feels-like) temperature and frostbite timing with our wind chill calculator. Review risk levels, layering tips, and safety steps.
Total Tools
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Why Use Our Risk & Prevention Calculators?
Our risk assessment and prevention calculator collection includes 36 tools for calculating life expectancy, 10-year ASCVD (atherosclerotic cardiovascular disease) risk score, cardiac risk factors, biological age, stroke risk, UV index exposure, and humidity-related health impacts. These calculators use validated risk models — including the Pooled Cohort Equations for ASCVD and Framingham risk scoring — to help you understand and reduce your health risks.
Who Are These Calculators For?
Individuals curious about their longevity and cardiovascular risk, primary care providers screening patients for heart disease, and health-conscious people evaluating lifestyle factors that influence long-term health outcomes. Our life expectancy and ASCVD risk calculators consistently rank among the most popular tools on the site.
How Our Calculators Work
Enter your health parameters — age, blood pressure, cholesterol, smoking status, diabetes history — and the calculator applies validated risk models to estimate your probability of cardiovascular events, biological age, or life expectancy. Results include risk categories, modifiable factors, and evidence-based recommendations for risk reduction.
Key Benefits
- Medical-grade accuracy based on WHO and CDC guidelines
- Instant results with detailed explanations and recommendations
- Calculations run in your browser; some tools offer local saving
- No registration, no personal data collected
Frequently Asked Questions
How is the 10-year ASCVD risk score calculated?
What is the most accurate life expectancy calculator?
What is biological age and how does it differ from chronological age?
How can I reduce my cardiovascular risk?
What UV index level is dangerous?
Explore More Health Calculators
Discover our complete collection of 371 health calculators across 9 categories