Health Calculators
ECG Heart Rate Calculator
Calculate heart rate from an ECG using R-R interval distance (mm/cm) or ECG boxes, with selectable paper speed (25 or 50 mm/s).
Enter either the measured R-R interval distance (in mm or cm) or the number of ECG boxes between two R-wave peaks.
Choose paper speed (25 or 50 mm/s) and box type (small 1 mm or big 5 mm).
You can also enter BPM to compute the expected R-R interval.
R-R interval
mm
Type of box
R-R interval (boxes)
Paper speed
Beats per minute (BPM)