Find out how old your cardiovascular system is functioning based on your risk factors. Heart age reveals whether your heart and arteries are ageing faster than the rest of you — and which factors are driving it.
Measured in mmHg. If you don't know your blood pressure, select "Don't know" — it will be estimated as average.
Leave blank if you don't have your cholesterol results — other factors will still give a meaningful estimate.
Heart age is an estimate of how old your cardiovascular system is functioning, based on your risk factors rather than your birth date. The concept was popularised by the NHS Heart Age Test and has been adopted by public health campaigns worldwide as a way to make cardiovascular risk tangible and motivating.
Where a cholesterol reading of 6.2 mmol/L may mean little to most people, being told "your heart is 12 years older than you are" creates immediate, actionable context. Research consistently shows that framing cardiovascular risk as heart age — rather than percentage probabilities — substantially increases people's intention to make lifestyle changes.
Heart age is calculated by taking your chronological age and adding or subtracting years based on risk factors known to accelerate or protect cardiovascular ageing: blood pressure, cholesterol, smoking, weight, physical activity, diabetes and family history. The result tells you whether your cardiovascular system is ageing ahead of or behind schedule.
Medical cardiovascular risk tools — QRISK3 in the UK, the Pooled Cohort Equations in the US — express risk as a 10-year probability percentage. A result of "11.4% risk of heart attack or stroke in the next 10 years" is clinically precise but psychologically inert for most people. They struggle to process what 11.4% feels like or what they should do about it.
Heart age bypasses this problem. A person told their heart age is 58 when they are 44 understands immediately that something is wrong. The gap is concrete, emotionally resonant and directly actionable. Studies find that patients shown their heart age are significantly more likely to request medication, change diet or quit smoking than those shown only the percentage risk figure.
Current smoking adds 7–8 years to heart age in this model, and the real-world cardiovascular impact is even larger. Smoking accelerates atherosclerosis, raises blood pressure, reduces HDL cholesterol, promotes blood clot formation and damages the endothelial lining of arteries. The good news: the cardiovascular risk from smoking drops rapidly after quitting. Within 1 year of quitting, coronary heart disease risk falls by approximately 50%. Within 15 years, it approaches the risk of someone who never smoked.
Hypertension (systolic BP ≥140 mmHg) adds up to 6–10 years to heart age depending on severity. High blood pressure is called the "silent killer" because it causes no symptoms while progressively damaging arterial walls, forcing the heart to work harder and increasing the risk of both heart attack and stroke. Reducing systolic BP from 160 to below 130 mmHg through medication, diet (DASH approach), reduced sodium and regular exercise can subtract 6–10 years from heart age.
Total cholesterol alone is a limited marker — HDL ("good") cholesterol is cardioprotective and high levels subtract years from heart age. The ratio of total cholesterol to HDL, or the LDL figure, is more clinically meaningful. Statin therapy, dietary changes (reducing saturated fat, increasing soluble fibre) and aerobic exercise can meaningfully improve the cholesterol profile within 3–6 months.
Being sedentary adds 2 years to heart age; being active subtracts 3. This 5-year differential is larger than many people expect. Regular moderate-intensity exercise (150+ minutes per week) lowers blood pressure, raises HDL cholesterol, improves insulin sensitivity, reduces body weight and directly reduces cardiovascular mortality by approximately 30–35%. The effect is dose-dependent and begins within weeks of starting a regular exercise routine.
BMI above 35 adds 7 years to heart age. But the distribution of excess weight matters as much as the amount. Visceral abdominal fat — the type that accumulates around organs — drives the metabolic risk far more than subcutaneous fat. Waist circumference above 94cm (men) or 80cm (women) carries substantial cardiovascular risk regardless of BMI. Even modest weight loss of 5–10% of body weight produces meaningful reductions in blood pressure, cholesterol and insulin resistance.
Type 2 diabetes and pre-diabetes add 4 years to heart age. People with diabetes have 2–4 times the cardiovascular risk of those without. Elevated blood glucose damages arterial walls through glycation, promotes inflammation and accelerates atherosclerosis. The encouraging finding: type 2 diabetes is substantially reversible through weight loss, dietary change and exercise — particularly in the early years after diagnosis.
The risk factors multiply, not just add. Someone who smokes, has high blood pressure, high cholesterol, is sedentary and has diabetes can accumulate 20+ years of heart age beyond their chronological age. But the reverse is equally true — addressing each factor compounds the benefit. Quitting smoking + controlling BP + becoming active can reduce heart age by 15–18 years collectively.
| Risk factor | Intervention | Timeline to benefit | Heart age improvement |
|---|---|---|---|
| Smoking | Quit completely | 50% coronary risk reduction within 1 year | ~8 years |
| Blood pressure | Reduce to <130 mmHg | BP improves within weeks; arterial benefit within months | Up to 10 years |
| Physical activity | 150+ min/wk moderate exercise | CV benefit measurable within 8–12 weeks | 5 years |
| Weight | 5–10% body weight loss | Blood pressure & lipid improvements within 3 months | 3–5 years |
| Cholesterol | Statin or dietary change | LDL reduction within 4–6 weeks | 2–6 years |
| Diabetes control | HbA1c to target | Ongoing CV risk reduction with sustained control | 2–4 years |
A heart age more than 5 years older than your actual age warrants a formal cardiovascular health review — including blood pressure measurement, fasting lipid panel and blood glucose. This is a standard NHS Health Check recommendation for anyone over 40.
A heart age more than 10 years older indicates high cardiovascular risk and merits prompt medical attention. In clinical terms, this typically corresponds to a 10-year cardiovascular risk above 10%, which is the threshold at which most guidelines recommend considering statin therapy alongside lifestyle intervention.
Your heart age is 10+ years older than your actual age. You have systolic BP consistently above 160 mmHg. You have a first-degree relative who had a heart attack or stroke before age 50. You experience chest tightness, shortness of breath on mild exertion, or palpitations. These symptoms warrant urgent medical assessment, not just a calculator result.
If your heart age is elevated: quit smoking if applicable (largest single-factor gain), get blood pressure checked and treated if elevated, increase physical activity to 150+ minutes per week, and discuss your cholesterol and glucose levels with your GP. Most people who address two or three factors simultaneously see meaningful heart age reductions within 6–12 months.
Web-based heart age calculators are screening tools, not clinical risk assessments. They are designed to identify people who should seek formal evaluation — and they do this reliably. Studies comparing web heart age tools to formal cardiovascular risk scoring (QRISK3, PCE) find reasonable agreement for identifying high-risk individuals, even with the simplified inputs web tools use.
The formal clinical tools are more precise: QRISK3 incorporates over 20 variables including ethnicity, social deprivation, atrial fibrillation, kidney function, systemic lupus erythematosus and other factors. If this calculator suggests high risk, a formal QRISK3 or Pooled Cohort Equations assessment with your GP or cardiologist is the appropriate next step.