Health

QTc Calculator (Bazett)

QTc = QT ÷ √RR.

Parameters Live Compute
Calculated Output
QTc (ms) 380
Step-by-Step Breakdown
1. Values used:
2. QT interval = 380 ms
3. RR interval = 1,000 ms
4. QTc = 380ms
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Bazett's formula — corrected QT. Informational, not a clinical interpretation tool.

Frequently Asked Questions

Normal QTc?

Typically < 440 ms (men) or < 460 ms (women).

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