What Is QRISK? The NHS Cardiovascular Risk Calculator Explained
QRISK is a family of cardiovascular risk algorithms developed by Professor Julia Hippisley-Cox at the University of Nottingham, in collaboration with EMIS Health. The QRISK score — now in its third iteration, QRISK3 — is the standard tool used by NHS GPs across England to estimate a patient's 10-year risk of developing cardiovascular disease (CVD), including heart attack and stroke.
QRISK3 is specifically validated for and derived from the UK population, using anonymised data from millions of NHS patient records. This makes it far more appropriate for estimating cardiovascular risk in UK patients than American or European models such as the Framingham score or SCORE2. In 2026, QRISK3 remains the algorithm recommended by NICE guideline CG181 (Cardiovascular risk assessment and the modification of blood lipids) for use across the NHS.
❤️ What does the QRISK3 score mean? Your QRISK3 score is expressed as a percentage — it represents your estimated probability of experiencing a heart attack or stroke in the next 10 years. For example, a score of 12% means that, based on your risk factor profile, approximately 12 in 100 people with your characteristics would experience a cardiovascular event over the next decade.
QRISK2 vs QRISK3 — What Changed?
QRISK3 was published in 2017 and replaced QRISK2 as the NHS standard tool in 2018. The key difference is that QRISK3 incorporates additional risk factors not included in QRISK2, improving accuracy — particularly for patients with specific health conditions previously underrepresented in risk models.
📋 QRISK2 (Superseded)
- Age, sex, ethnicity
- Systolic blood pressure
- Smoking status
- Total:HDL cholesterol ratio
- Body mass index (BMI)
- Family history of CVD
- Deprivation (Townsend score)
- Diabetes (type 1 and 2)
- Atrial fibrillation
- Rheumatoid arthritis
- Antihypertensive treatment
✅ QRISK3 (Current NHS Standard)
- All QRISK2 variables, PLUS:
- Systolic BP variability (multiple readings)
- Chronic kidney disease (CKD)
- Migraine history
- Systemic lupus erythematosus (SLE)
- Severe mental illness / schizophrenia
- Erectile dysfunction in men
- Corticosteroid (oral steroid) use
- Atypical antipsychotic use
- HIV/AIDS
- Contraceptive pill / HRT use
These additional variables allow QRISK3 to more accurately estimate risk for people with complex health profiles — particularly women on hormonal treatments, people with mental health conditions, and those with inflammatory or autoimmune diseases.
QRISK3 Risk Levels — What Your Score Means
QRISK3 results are interpreted using the following NHS and NICE risk categories in 2026:
NHS does not routinely recommend statins at this level. Focus on lifestyle modification and regular monitoring.
NICE recommends discussing statin therapy. Lifestyle changes are strongly advised. Annual cardiovascular review recommended.
NHS recommends offering high-intensity statin therapy alongside lifestyle interventions. Urgent GP review advised.
⚠️ NICE Statin Threshold: NICE guideline CG181 recommends offering statin therapy (typically atorvastatin 20–80 mg) to all adults with a QRISK3 score of 10% or more. Statins are also offered regardless of QRISK score to people with established CVD, type 1 diabetes over 40, or CKD stage 3+. Your GP will discuss your individual circumstances.
QRISK3 Risk Factors — What Goes Into the Score?
QRISK3 incorporates a wide range of risk factors, each weighted according to their contribution to cardiovascular risk in the UK population. Here is a summary of the key modifiable and non-modifiable factors:
| Risk Factor | Type | Impact on CVD Risk |
|---|---|---|
| Age | Non-modifiable | Very High |
| Male sex | Non-modifiable | High |
| Smoking (heavy) | Modifiable | High |
| Systolic blood pressure | Modifiable | High |
| Total:HDL cholesterol ratio | Partly modifiable | High |
| Type 2 diabetes | Partly modifiable | High |
| Atrial fibrillation | Non-modifiable | High |
| Deprivation (Townsend score) | Non-modifiable | Moderate |
| South Asian ethnicity | Non-modifiable | Moderate |
| BMI (above 30) | Modifiable | Moderate |
| Chronic kidney disease | Non-modifiable | Moderate |
| Rheumatoid arthritis | Non-modifiable | Moderate |
| Systemic lupus erythematosus | Non-modifiable | Moderate |
| Family history of CVD | Non-modifiable | Moderate |
| Corticosteroid use | Modifiable | Moderate |
| Severe mental illness | Non-modifiable | Moderate |
| Migraine | Non-modifiable | Lower |
| Erectile dysfunction | Non-modifiable | Lower |
How to Reduce Your Cardiovascular Risk — NHS 2026 Guide
Many of the risk factors included in QRISK3 are modifiable — meaning lifestyle changes can meaningfully reduce your 10-year cardiovascular risk score. Here are the NHS-recommended strategies for reducing cardiovascular risk in 2026:
Stop Smoking — The Single Biggest Change You Can Make
Smoking is one of the most powerful modifiable risk factors in QRISK3. Heavy smokers have substantially elevated CVD risk. Stopping smoking within 3–5 years reduces cardiovascular risk to near that of a non-smoker. The NHS Smokefree service (0300 123 1044) provides free, expert cessation support.
Manage Blood Pressure — Target Below 130/80 mmHg
Systolic blood pressure is one of the strongest continuous predictors in QRISK3. Every 10 mmHg reduction in systolic BP reduces cardiovascular risk by approximately 20–25%. Salt reduction, exercise, weight loss, and antihypertensive medication all contribute. Check your reading with our Blood Pressure Calculator NHS.
Achieve and Maintain a Healthy Weight
Obesity (BMI 30+) contributes directly to cardiovascular risk through its effects on blood pressure, cholesterol, blood sugar, and inflammation. Losing even 5–10% of body weight significantly reduces CVD risk. Use our Visual BMI Calculator and Calorie Deficit Calculator NHS to set evidence-based weight targets. Our guide on the safe rate of weight loss per week explains the NHS-recommended 0.5–1 kg/week approach.
Exercise 150+ Minutes Per Week
Regular aerobic exercise reduces blood pressure, improves cholesterol profile, reduces body weight, and independently lowers cardiovascular risk. The NHS recommends at least 150 minutes of moderate-intensity activity weekly. Even brisk walking for 30 minutes five times a week confers significant cardiovascular benefit.
Follow a Heart-Healthy Diet
The Mediterranean and DASH diets both reduce cardiovascular risk. Key principles: reduce saturated fat and replace with unsaturated fats (olive oil, nuts, oily fish); eat at least 5 portions of fruit and vegetables daily; reduce salt to under 6g per day; limit red and processed meat; increase oily fish, wholegrains, and legumes.
Limit Alcohol to Under 14 Units Per Week
Excess alcohol raises blood pressure, contributes to weight gain, and causes cardiac arrhythmias. The NHS recommends a maximum of 14 units weekly for adults, spread over at least 3 days. Even within this limit, several alcohol-free days per week reduces cardiovascular risk.
Discuss Statin Therapy with Your GP
For QRISK3 scores of 10% or above, NICE recommends offering statin therapy (typically atorvastatin 20 mg for primary prevention). Statins reduce LDL cholesterol and directly lower cardiovascular risk. Your GP can arrange a full lipid profile including total:HDL cholesterol ratio — a key variable in the official QRISK3 calculation — plus creatinine for CKD staging.
💡 Complete cardiovascular health toolkit: Use our Blood Pressure Calculator NHS to check your BP category, our Visual BMI Calculator to check your BMI, and our Calorie Deficit Calculator NHS to plan safe weight loss. For your family's health, use our Child Growth Chart Calculator UK and Baby Weight Percentile Calculator UK.
The NHS NHS Heart Risk Calculator — What Happens at Your GP Appointment?
If you visit your GP for a cardiovascular risk assessment — which the NHS recommends for all adults over 40 as part of the NHS Health Check programme — your GP will use the official QRISK3 tool embedded in their clinical software (typically EMIS Web or SystmOne).
The full clinical QRISK3 calculation uses data automatically pulled from your medical record, including:
- Multiple historical blood pressure readings (to capture systolic variability — a QRISK3-specific variable)
- Fasting lipid profile — total cholesterol, HDL cholesterol, and the total:HDL ratio
- Serum creatinine and estimated GFR (for CKD staging)
- HbA1c (for diabetes diagnosis and control)
- Full medication list pulled from prescribing records
- Full read-coded medical history including all QRISK3 conditions
This is why the official NHS QRISK3 score is more precise than any online tool — and why our calculator is intended as an educational awareness tool, not a replacement for a GP assessment.
NHS Health Checks are offered free to all adults aged 40–74 every 5 years in England and include a full QRISK3 cardiovascular risk assessment. Contact your GP surgery to book yours if you have not had one recently.
Frequently Asked Questions
QRISK3 is the third generation of the QRISK cardiovascular risk algorithm, developed by the University of Nottingham and EMIS Health. It is the tool recommended by NICE and used by NHS GPs in England to estimate a patient's 10-year risk of developing cardiovascular disease, including heart attack and stroke. It replaced QRISK2 as the NHS standard tool in 2018 and remains current in 2026. Our QRISK3 calculator NHS tool provides an approximate estimate — full clinical QRISK3 requires laboratory test results available at your GP surgery.
QRISK3 results are expressed as a percentage representing the 10-year risk of cardiovascular disease. A score below 10% is considered low risk. A score of 10–20% is moderate risk — the NHS considers this the threshold at which statins may be offered. A score above 20% is high risk. NICE guidelines recommend offering statin therapy to adults with a QRISK3 score of 10% or more (NICE CG181).
QRISK3 (2017) replaced QRISK2 and includes additional risk factors not captured by QRISK2, including: SLE, severe mental illness, systolic blood pressure variability, corticosteroid use, atrial fibrillation, erectile dysfunction in men, migraine, CKD, and HIV/AIDS. QRISK3 provides more accurate risk estimates across a broader range of patients and is the current NHS-standard tool as of 2026.
According to NICE guideline CG181, the NHS offers statin therapy (typically atorvastatin 20 mg for primary prevention) to adults with a QRISK3 10-year cardiovascular risk of 10% or more. Statins are also offered regardless of QRISK score to people with: established cardiovascular disease; type 1 diabetes (especially if over 40); chronic kidney disease stage 3+. Your GP will discuss your individual risk and treatment options.
QRISK3 is the most validated cardiovascular risk tool for the UK population and outperforms earlier tools in accuracy across diverse ethnic groups and health conditions. However, it is a population-level statistical model — it estimates risk based on data from millions of patients, not a precise individual prediction. This online tool provides an approximate estimate as it lacks laboratory data (cholesterol, creatinine) available at your GP. Always discuss your QRISK3 result with your GP for a full clinical assessment.
No — this tool is for educational awareness only. The official NHS QRISK3 tool used by GPs incorporates additional clinical data from your medical records including laboratory cholesterol results, blood pressure history, and full medical history, producing a more precise result. Use this tool as a starting point to understand your risk factors, then book an NHS Health Check or GP appointment for a full, accurate cardiovascular risk assessment.