CH
Calculator
Hunt
Finance
Health
Math
Everyday
Conversion
Physics
All
Home
›
Health
›
ECG Heart Rate
Health
ECG Heart Rate Calculator
Calculate heart rate from ECG R-R interval.
Method
Large box method (# large boxes between R-R)
Small box method (# small boxes between R-R)
6-second strip (# R waves in 6 seconds)
Count
Calculate
Heart Rate
—
R-R Interval
—
Classification
—
Large box: HR = 300 / # large boxes
Small box: HR = 1500 / # small boxes
6-second: HR = R waves × 10