Health calculators

Heart Age Calculator

Updated Sep 23, 2026 By Infinity Calculator
Rate Formulas Medical disclaimer
Pre-Screening
This tool estimates primary cardiovascular risk — that is, risk for people without a known diagnosis.
The risk equations used here (Framingham Heart Study) are validated for adults aged 30 to 75. Enter your age below.
Core Inputs (required)
Validated range: 30–75 years.
Used for sex-specific risk weighting in the equations. Refers to biological sex, not gender identity.
Switching converts every value below; you can also set each field's unit individually.
"Current smoker" = any cigarette smoking in the past 12 months.
Your BMI: 25.9 kg/m² Overweight
BMI is computed from your height and weight — you never need to enter it directly.
Improve Your Result Accuracy (Optional)
Leave any field blank and the calculator substitutes a population-average value for your age and sex. Your result will still be produced, but it will be less accurate. Entering real measurements personalises the estimate.
The top number on a blood pressure reading (e.g. 120 in 120/80). Valid range 70–250 mmHg.
The bottom number on a blood pressure reading (e.g. 80 in 120/80). Valid range 40–150 mmHg. Note: diastolic pressure does not directly enter the cardiovascular risk equation; it may inform advisory tips.
Are you currently taking any prescribed medication to lower your blood pressure? Treatment is an independent risk modifier.
Has a parent or sibling been diagnosed with heart disease, or had a heart attack or stroke, before the age of 60?
Found on a blood panel or lipid profile test. Ask your doctor or pharmacist if unsure. Valid range 1–20 mmol/L.
HDL is listed separately from total cholesterol on the same lipid panel. It must be lower than your total cholesterol.
Have you been diagnosed with Type 2 diabetes?
Heart Age vs. Actual Age
Your Heart Age
48
years
Your Actual Age
45
years
Population Average Heart Age
(same age & sex)
47
years
Your heart is estimated to be 3 years older than your chronological age.
Longer bar = higher estimated cardiovascular ageing.
5-Year Cardiovascular Event Risk

Based on your inputs, you have an estimated 3.24% chance of experiencing a heart attack or stroke in the next 5 years.

In plain language: out of 100 people with the same risk-factor profile as you, about 3 would be expected to have a cardiovascular event within five years, and about 97 would not.

Low Risk
Scale runs from 0% to 15% five-year risk. Your position is marked and also stated as a text label above.
Age Comparison
Risk Factor Contribution (relative hazard vs. a healthy reference)
A value of ×1.00 means that factor adds nothing compared with the healthy reference profile; higher values multiply your estimated hazard.
Step-by-Step Solution
Inputs Used in This Calculation
InputValue usedSource
Personalised Improvement Tips

Introduction

Your heart age is a simple way to see how healthy your heart is. It compares you to a healthy person of the same sex. If your heart age is higher than your real age, your heart is working under more strain than it should be.

This Heart Age Calculator uses the Framingham Heart Study risk equations, which doctors and researchers have used for years. It gives you two numbers: your heart age in years, and your chance of having a heart attack or stroke in the next 5 years.

You only need a few things to start: your age, sex, height, weight, and whether you smoke. The tool works out your BMI for you. If you know your blood pressure and cholesterol numbers, add them too. Those numbers make your result much more accurate. If you leave them blank, the calculator fills in an average for your age and sex, and tells you it did.

The calculator works for adults aged 30 to 75 who have not been told they have heart disease. It shows you each step of the math, a chart comparing your heart age to the average, and tips you can act on. It is not a diagnosis. Use it to start a talk with your doctor.

How to use our Heart Age Calculator

Enter a few facts about your health, like your age, height, weight, blood pressure, and cholesterol. The Heart Age Calculator then shows your heart age, your 5-year risk of a heart attack or stroke, and tips to lower that risk.

Heart disease question: Pick "Yes" if a doctor has told you that you have heart disease, or if you have had a heart attack or stroke. Pick "No" if you have not. This tool only works for people who answer "No."

Age: Type your age in years. It must be between 30 and 75, since the risk formula was tested on that age group.

Biological sex: Choose Male or Female. Heart risk is scored differently for each sex.

Unit system: Pick Metric (cm, kg, mmol/L) or Imperial (feet, pounds, mg/dL). You can also change the unit on each box on its own.

Smoking status: Choose "Current smoker" if you have smoked any cigarettes in the past year. If not, choose "Non-smoker."

Height: Type your height and pick your unit: cm, m, inches, or feet plus inches. This is used to work out your BMI.

Weight: Type your weight and pick kg, pounds, or stone. Your BMI shows right away under these boxes.

Systolic blood pressure: Type the top number from your blood pressure reading, like 120 in 120/80. Leave it blank and we use an average for your age and sex, but your result will be less exact.

Diastolic blood pressure: Type the bottom number, like 80 in 120/80. This number is used for advice tips, not the risk score.

Blood pressure medication: Choose "Yes" if you take pills to lower your blood pressure. If not, choose "No."

Family history: Choose "Yes" if a parent, brother, or sister had heart disease, a heart attack, or a stroke before age 60.

Total cholesterol: Type the total cholesterol number from your blood test. You can use mmol/L or mg/dL.

HDL cholesterol: Type your HDL ("good") cholesterol from the same blood test. It must be lower than your total cholesterol.

Type 2 diabetes: Choose "Yes" if a doctor has told you that you have Type 2 diabetes. If not, choose "No."

Calculate: Click Calculate to see your heart age, your risk score, charts, the math steps, and health tips. Click Reset to start over.

What Is Heart Age?

Heart age is a simple way to show how healthy your heart and blood vessels are. It compares you to other people your age and sex. If your heart age is higher than your real age, your heart has aged faster than it should. That means your risk of a heart attack or stroke is higher than it needs to be.

For example, if you are 45 but your heart age is 52, your heart looks more like the heart of a 52-year-old. Heart age can also come back down when you make healthy changes.

What Makes Heart Age Go Up

Doctors look at a few key risk factors. These are the biggest ones:

  • High blood pressure: Extra force pushing on your artery walls slowly damages them.
  • High cholesterol: Too much total cholesterol and too little HDL (the "good" kind) lets fat build up inside arteries.
  • Smoking: Smoking harms blood vessels and raises risk more than almost anything else.
  • Type 2 diabetes: High blood sugar damages arteries over many years.
  • Extra body weight: A high BMI often raises blood pressure and cholesterol at the same time.
  • Family history: If a parent or sibling had heart disease early, your risk is higher.
  • Age and sex: Risk rises with age, and men and women have different risk patterns.

Where the Numbers Come From

This heart age estimate uses risk equations from the Framingham Heart Study, one of the longest running heart studies in the world. The math gives you a 5-year risk score, meaning your chance of having a heart attack or stroke in the next five years. That score is then matched to the age of a healthy person with the same risk. That matched age is your heart age.

The equations work best for adults between 30 and 75 who have not already been told they have heart disease. If you have had a heart attack, a stroke, or a heart disease diagnosis, your doctor uses different tools made for people like you.

Understanding 5-Year Risk

Risk is a group number, not a promise about you. If your risk is 6%, it means about 6 out of 100 people with your same profile would have a heart attack or stroke in five years, and 94 would not. Risk bands are usually set like this:

  • Low: under 5%
  • Moderate: 5% to 10%
  • High: 10% or more

How to Lower Your Heart Age

Almost every risk factor except age, sex, and family history can be changed. Quitting smoking is the fastest win. Moving your body most days, eating less salt and saturated fat, eating more fish, nuts, beans, fruit, and vegetables, losing 5% to 10% of your weight, drinking less alcohol, and sleeping well all help. If you take blood pressure or cholesterol medicine, taking it every day matters.

Know Your Real Numbers

You get the most accurate result when you enter real test results instead of leaving fields blank. A blood pressure check is quick and often free at a pharmacy. A lipid panel is a normal blood test that gives you your total cholesterol and HDL. Real numbers can shift your heart age by several years in either direction.

Note: This tool gives an estimate for learning, not a diagnosis. Talk to a doctor or nurse about your results and before changing any medicine or treatment.

Formulas used

Framingham linear predictor (sex-specific)
L = \beta_{age}\ln(\text{Age}) + \beta_{TC}\ln(\text{TC}) + \beta_{HDL}\ln(\text{HDL}) + \beta_{SBP}\ln(\text{SBP}) + \beta_{smoke}\cdot S + \beta_{dm}\cdot D
5-year baseline survival from 10-year value
S_0(5) = \left(S_0(10)\right)^{0.5}
5-year cardiovascular event risk
\text{Risk}_5 = 1 - S_0(5)^{\exp\left(L - \bar{L}\right)}
Heart age (age of healthy reference with same risk)
\text{Heart Age} = A \quad \text{such that} \quad \text{Risk}_5^{\text{ref}}(A) = \text{Risk}_5
Heart age difference
\Delta = \text{Heart Age} - \text{Actual Age}
Body mass index
\text{BMI} = \frac{\text{weight (kg)}}{\left(\text{height (m)}\right)^2}
Relative hazard multiplier of a risk factor
RH_i = \exp\left(\beta_i \ln(x_i) - \beta_i^{\text{ref}} \ln(x_i^{\text{ref}})\right)
Risk meter marker position
P = \frac{\min\left(100 \times \text{Risk}_5,\, 15\right)}{15} \times 100\%

Frequently asked questions

What is a normal heart age?

A normal heart age is about the same as your real age, or lower. If you are 50 and your heart age is 48 to 50, your heart is aging at a normal pace or slower.

Many adults get a heart age a few years above their real age, because average blood pressure, cholesterol, and weight in the population are higher than ideal. Being close to the average is not the same as being healthy.

Is it bad if my heart age is older than my real age?

It is a warning sign, not a diagnosis. It means your chance of a heart attack or stroke is higher than it should be for someone your age.

Most of what pushes a heart age up can be changed. Blood pressure, cholesterol, smoking, weight, and blood sugar all respond to treatment and daily habits.

Can your heart age be younger than your real age?

Yes. If your blood pressure and cholesterol are better than average, you do not smoke, and you do not have diabetes, your heart age can come out several years below your real age.

Very healthy people often see a heart age 5 to 10 years younger than their birth age.

How fast can you lower your heart age?

Some changes show up in weeks. Blood pressure can drop within 2 to 4 weeks of cutting salt, moving more, and drinking less alcohol. Cholesterol can improve in 6 to 12 weeks with diet changes or medicine.

Because heart age is built from those numbers, a fresh set of test results a few months later can show a heart age several years lower.

How much does smoking raise your risk of a heart attack?

In the Framingham risk equations, being a current smoker multiplies your risk by about 1.9 times for men and 1.7 times for women. Everything else being equal, that can add many years to a heart age.

Smoking damages the lining of blood vessels and makes blood clot more easily, which is why it hits heart risk so hard.

How long after quitting smoking does heart risk go down?

Risk starts falling almost right away. Within 1 year of quitting, the extra risk of heart disease is roughly cut in half. After about 10 to 15 smoke-free years, risk gets close to that of someone who never smoked.

Quitting helps at any age, even after 60.

What blood pressure counts as high?

Here are the common bands (top number / bottom number in mmHg):

  • Normal: under 120 / under 80
  • Elevated: 120 to 129 / under 80
  • High, stage 1: 130 to 139, or 80 to 89
  • High, stage 2: 140 or more, or 90 or more

One high reading does not mean you have high blood pressure. Doctors check it more than once on different days.

What is a good HDL cholesterol level?

HDL is the "good" cholesterol, so higher is better. Aim for at least 1.0 mmol/L (40 mg/dL) for men and 1.3 mmol/L (50 mg/dL) for women. Levels near 1.6 mmol/L (60 mg/dL) or above help protect your arteries.

Regular exercise, oily fish, nuts, olive oil, and quitting smoking all raise HDL.

What is a good cholesterol ratio?

The ratio is your total cholesterol divided by your HDL. Lower is better.

  • Ideal: under 3.5
  • Good: under 4.5
  • Higher risk: 4.5 or more

Example: total cholesterol 5.4 and HDL 1.2 gives 4.5. The ratio matters because a decent total number can still hide low HDL.

Does losing weight lower blood pressure and heart age?

Yes. On average, every 1 kg (about 2 lb) lost drops systolic blood pressure by roughly 1 mmHg. Losing 5% to 10% of your body weight also tends to raise HDL and lower blood sugar.

Because heart age is built from blood pressure and cholesterol, those shifts can pull it down by a few years.

How much does Type 2 diabetes raise heart risk?

A lot. In the Framingham equations, diabetes multiplies risk by about 1.8 times for men and 2.0 times for women. That is why doctors treat diabetes as a heart condition too.

Controlling blood pressure and cholesterol lowers heart events in people with diabetes even more than controlling blood sugar alone.

Does family history of heart disease mean I will get it too?

No. It raises your risk, but it does not decide your future. A parent or sibling with heart disease, a heart attack, or a stroke before age 60 is the type of history that counts most.

You cannot change your genes, so tight control of blood pressure, cholesterol, weight, and smoking matters even more.

What is the difference between systolic and diastolic blood pressure?

Systolic is the top number. It is the pressure while your heart squeezes. Diastolic is the bottom number, the pressure while your heart rests between beats.

In a reading of 128/82, systolic is 128 and diastolic is 82. Most heart risk formulas use only the systolic number, because it predicts heart attacks and strokes better in adults over 50.

How often should you get your cholesterol checked?

Healthy adults should have a lipid panel every 4 to 6 years. Check more often, usually every year, if you have high cholesterol, high blood pressure, diabetes, a strong family history, or you smoke.

It is a simple blood test that gives your total cholesterol, HDL, LDL, and triglycerides.

What is the difference between heart age and 5-year heart risk?

They come from the same math but say it in two ways. The 5-year risk is a percent: your chance of a heart attack or stroke in the next five years. Heart age turns that percent into a number of years.

Most people find years easier to grasp. Hearing "your heart is like a 58-year-old's" lands harder than "your risk is 7%."

Why do heart age formulas only work for adults aged 30 to 75?

The Framingham equations were built and tested on adults in that age range, so the numbers only hold there. Under 30, short-term risk is so low that a heart age would swing wildly. Over 75, the formulas tend to misjudge risk.

Older adults and people who already have heart disease need different tools, which a doctor can use.

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