Calculation of R-R Interval from Heart Rate
In this calculator you can determine the duration of the R-R interval in milliseconds, just enter the heart rate.
If you wish, you can also perform the inverse operation, you can calculate the heart rate from the duration of the R-R interval.
This formula is only valid for electrocardiograms with regular rhythm.
Heart Rate R-R Interval
Heart rateR-R interval:
Click if you prefer to calculate the HR value from the R-R interval.
Click if you prefer to calculate the R-R interval value from the HR.
Remember, this calculator is not 100% reliable, and it is not a substitute for traditional methods of R-R interval calculation, nor electrocardiogram evaluation made by a doctor or competent professional.
Explanation of R-R Interval Calculation
Since we try to make the analysis of the electrocardiogram faster and simpler, we have created this R-R interval calculator, but you can always calculate it yourself.