HEART Score Calculator for Chest Pain
Calculate the classic HEART Score from clinician-assessed history, interpreted ECG, age, risk factors, and the initial same-assay troponin result.
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About
This HEART Score calculator adds History, clinician-interpreted ECG, Age, documented Risk factors, and the initial Troponin result for an adult evaluated in the emergency department for acute chest pain or suspected acute coronary syndrome. Each component contributes 0, 1, or 2 points. [1, 3]
The result is the classic HEART score, not the HEART Pathway. It does not interpret an ECG, diagnose ACS, replace serial high-sensitivity troponin pathways, or select testing, observation, admission, discharge, or treatment. [5, 6, 7]
Interpretation
| Score | Band | 2013 six-week MACE | Limit |
|---|---|---|---|
| 0–3 | Low HEART score band | 1.7% | Historical cohort observation; not an individual probability or disposition rule. |
| 4–6 | Intermediate HEART score band | 16.6% | Historical cohort observation; not an automatic testing or admission instruction. |
| 7–10 | High HEART score band | 50.1% | Historical cohort observation; not an ACS diagnosis or treatment instruction. |
These percentages came from the 2013 prospective cohort and its six-week composite of acute myocardial infarction, PCI, CABG, angiographically correctable stenosis managed conservatively, or all-cause death. Another 2010 validation reported 0.99%, 11.6%, and 65.2% across the same three score bands, illustrating that observed event rates vary by cohort and endpoint implementation. [2, 3]
How to calculate and interpret a HEART score
History and ECG require clinician assessment
Choose the documented clinical history category and the category from an interpreted 12-lead ECG. The software does not infer whether symptoms are suspicious or analyze an ECG tracing. Significant ST-segment depression scores 2; nonspecific repolarization disturbance scores 1; a normal ECG scores 0. [3]
Age and risk-factor scoring
Age younger than 45 scores 0, age 45–64 scores 1, and age 65 or older scores 2. The classic risk-factor set includes hypertension, hypercholesterolemia, diabetes, obesity, smoking, and family history of coronary artery disease. Zero factors score 0, one or two score 1, and three or more score 2. Documented atherosclerotic disease—prior myocardial infarction, PCI/CABG, stroke, or peripheral arterial disease—also makes the Risk Factors component 2; it does not add another 2 points. [1, 3]
Troponin uses the same assay’s upper reference limit
Enter the initial troponin and its laboratory upper reference limit in the same unit and from the same assay. A ratio at or below 1 × URL scores 0, above 1 and below 3 × URL scores 1, and 3 × URL or higher scores 2. The 2008 pilot used an earlier troponin scoring version; this page implements the standard prospective-validation scheme. It does not assume one universal assay, unit, or sex-specific cutoff. [1, 3]
Classic HEART is not the HEART Pathway
The classic score uses one initial troponin component. The HEART Pathway is a separate clinical decision pathway that combines a HEART/HEAR assessment with serial troponin measurements and protocol criteria. This page does not run that pathway or convert this score into a discharge decision. [6, 7]
HEART, GRACE, TIMI, and long-term risk are different tasks
HEART was designed for undifferentiated emergency-department chest pain. GRACE and TIMI have different derivation populations, inputs, endpoints, and intended uses; PREVENT and Framingham estimate longer-term cardiovascular risk. Scores are not interchangeable and should not be translated into one another. [3, 4, 5]
Current chest-pain and ACS boundaries
Current chest-pain guidance prioritizes prompt ECG assessment, serial cardiac troponin testing, high-sensitivity assays when available, and validated clinical decision pathways. The 2022 ACC pathway notes that some patients ruled out by an hs-cTn pathway with a nonischemic ECG do not require a risk score, while modified HEART or HEAR assessment can be used selectively in other pathways. Once ACS is established, the 2025 ACS guideline addresses a different management stage. [5, 6, 8]
Important limits
Do not delay emergency evaluation for STEMI or an equivalent, hemodynamic instability, shock, significant arrhythmia, ongoing high-risk symptoms, acute heart failure, or another serious cause of chest pain in order to complete this score. A HEART band does not establish diagnosis, individual event probability, testing eligibility, or disposition. [5, 6, 8]
References
- Six AJ, Backus BE, Kelder JC. Chest pain in the emergency room: value of the HEART score. Neth Heart J. 2008;16(6):191–196. PMID 18665203. DOI 10.1007/BF03086144.
- Backus BE, et al. Chest pain in the emergency room: a multicenter validation of the HEART Score. Crit Pathw Cardiol. 2010;9(3):164–169. PMID 20802272. DOI 10.1097/HPC.0b013e3181ec36d8.
- Backus BE, et al. A prospective validation of the HEART score for chest pain patients at the emergency department. Int J Cardiol. 2013;168(3):2153–2158. PMID 23465250. DOI 10.1016/j.ijcard.2013.01.255.
- Six AJ, et al. The HEART score for the assessment of patients with chest pain in the emergency department: a multinational validation study. Crit Pathw Cardiol. 2013;12(3):121–126. PMID 23892941. DOI 10.1097/HPC.0b013e31828b327e.
- Gulati M, et al. 2021 AHA/ACC/ASE/CHEST/SAEM/SCCT/SCMR Guideline for the Evaluation and Diagnosis of Chest Pain. J Am Coll Cardiol. 2021;78(22):e187–e285. PMID 34756653. DOI 10.1016/j.jacc.2021.07.053.
- Kontos MC, et al. 2022 ACC Expert Consensus Decision Pathway on the Evaluation and Disposition of Acute Chest Pain in the Emergency Department. J Am Coll Cardiol. 2022;80(20):1925–1960. PMID 36241466. DOI 10.1016/j.jacc.2022.08.750.
- Mahler SA, et al. The HEART Pathway randomized trial: identifying emergency department patients with acute chest pain for early discharge. Circ Cardiovasc Qual Outcomes. 2015;8(2):195–203. PMID 25737484. DOI 10.1161/CIRCOUTCOMES.114.001384.
- Rao SV, et al. 2025 ACC/AHA/ACEP/NAEMSP/SCAI Guideline for the Management of Patients With Acute Coronary Syndromes. Circulation. 2025;151(13):e771–e862. PMID 40014670. DOI 10.1161/CIR.0000000000001309.
FAQ
Enter the initial troponin and the laboratory upper reference limit (URL) for the same assay and in the same unit. At or below 1 × URL scores 0, above 1 and below 3 × URL scores 1, and 3 × URL or higher scores 2. The calculator does not assume a universal assay cutoff.
Sources: [3]
They are the classic low, intermediate, and high HEART score bands. In the 2013 prospective cohort, six-week MACE occurred in 1.7%, 16.6%, and 50.1%, respectively. Those are historical cohort observations, not an individual probability, diagnosis, or automatic disposition instruction.
Sources: [3]
No. HEART was designed for adult emergency-department chest-pain assessment. GRACE and TIMI use different acute-coronary populations and models, while PREVENT and Framingham estimate longer-term cardiovascular risk. Their scores and percentages cannot be converted into one another.
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Disclaimer
Educational and informational reference only. Not intended to replace professional medical advice, diagnosis, treatment, or independent verification.