The QTc Calculator

Heart rate:     bpm  RR interval = 60/HR
QT interval:       (may be multiple, separated by spaces)
      (optional)

Calculate QTc

Bazett:     QT/RR 1/2
Dmitrienko:     QT/RR 0.413
Fridericia:     QT/RR 1/3
Framingham:     QT + 154 (1 – RR)
Hodges:     QT + 1.75 (HR – 60)
Rautaharju1:     (QT (120 + HR))/180
Rautaharju2:     QT + 242.51 - 434 e -0.0097 HR
Rautaharju3:     QT - 185 (RR - 1) + [6 male, 0 female]
Sarma:     QT - 44.62 + 664 e -2.7 RR
Nomogram:     (extrapolated outside HR 40-120)
 
QT/RR:     Χ 1000

Show text

Please visit  russellcottrell.com.
Save this page; it’s a single document.