Cardiology · Emergency Medicine
Corrected QT Interval (Framingham) calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
ms
Allowed range: 200–700 ms
Quick picks
/min
Allowed range: 30–220 /min
Quick picks
Result
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Clinical inputs
- QT interval (ms)Accepted range: 200 to 700
- Heart rate (/min)Accepted range: 30 to 220
Primary source
Rautaharju PM et al. QT and QTc interval measurement and QT correction for heart rate in the Framingham Heart Study. Ann Noninvasive Electrocardiol. DOI: 10.1111/j.1542-474X.2004.00001.x. PMID: 15138455. Scope: Framingham linear QT correction QTc (ms) = QT interval (ms) + 154 × (1 − RR interval in seconds), with RR = 60 / heart rate (beats/min). (2004)
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