Cardiology · Emergency Medicine
Corrected QT Interval (Bazett) 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
Bazett HC. An analysis of the time-relations of electrocardiograms. Heart. DOI: 10.1093/heart/7.4.353. PMID: 18659244. Scope: Bazett correction QTc = QT / √RR with RR in seconds (RR = 60 / heart rate in beats per minute). (1920)
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