ECG · Repolarization
QTc Calculator
Compare Bazett, Fridericia, Framingham, and Hodges corrections from a measured QT interval and heart rate.
Inputs
Calculated locally. No values are stored.
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Enter the required values and calculate.
Interpretation requires the tracing
Automated QT values and formula choice can mislead. Confirm the end of the T wave, rhythm, QRS duration, rate, medicines, electrolytes, symptoms, and family history. No single correction formula is ideal in every setting.
Formula reference: Vandenberk et al., Journal of the American Heart Association 2016.