RR interval heart rate calculator

This calculator estimates heart rate from RR intervals in an ECG. It's useful for monitoring heart health and detecting arrhythmias.

Input Parameters

Calculation Results

Calculation Formula

Heart Rate (bpm) = 60 / RR Interval (seconds)

Where:
Heart Rate is measured in beats per minute (bpm)
RR Interval is the time between consecutive R peaks on an ECG in seconds

RR interval heart rate calculator Calculator Usage Guide

Learn how to use the RR interval heart rate calculator and its working principles

How to Use This Calculator

  1. Measure the time between consecutive R peaks on an ECG strip using a ruler or specialized software. This is your RR interval in seconds.
  2. Enter the RR interval value in the input field.
  3. Click the "Calculate" button to compute the heart rate.
  4. The result will be displayed in beats per minute (bpm).

Working Principle

The calculator uses the relationship between RR intervals and heart rate. A shorter RR interval means a faster heart rate, while a longer RR interval indicates a slower heart rate. The formula used is:

Heart Rate (bpm) = 60 / RR Interval (seconds)

This is based on the fact that there are 60 seconds in a minute, so dividing 60 by the time per beat gives the number of beats per minute.

Important Notes

  • Ensure your ECG measurement is accurate for reliable results.
  • This calculator provides an estimate. For medical diagnosis, consult with a healthcare professional.
  • Normal resting heart rate for adults typically ranges from 60-100 bpm.