ECG Heart Rate Calculator

ECG Heart Rate Calculator

Calculate heart rate from ECG tracings using R-R intervals

ECG Heart Rate Calculation

How to Calculate Heart Rate from ECG

Heart rate can be calculated from an ECG tracing using several methods:

  • R-R Interval Method: Measure the time between consecutive R waves
  • Large Box Method: Count large boxes between R waves (each large box = 0.2 seconds)
  • Small Box Method: Count small boxes between R waves (each small box = 0.04 seconds)
  • 6-Second Method: Count R waves in a 6-second strip and multiply by 10
beats per minute (BPM)

Calculation Details

Method Used:
Input Value:
Paper Speed:
Calculated Heart Rate:
Formula Used:

Heart Rate Categories

Severe Bradycardia: <40 BPM
Bradycardia: 40-59 BPM
Normal: 60-100 BPM
Tachycardia: 101-150 BPM
Severe Tachycardia: >150 BPM
Your Category:

ECG Interpretation

    Clinical Recommendations

      Why Choose Our Calculator Platform?

      Our professional calculator tools are designed to provide accurate, fast, and reliable results for financial, health, and everyday calculations.

      Instant Results

      All calculations are processed instantly in your browser with real-time output.

      100% Secure

      Your data is never stored. Everything runs locally for complete privacy.

      Accurate Formulas

      Built using verified mathematical formulas to ensure precise and reliable results.

      Mobile Friendly

      Fully responsive design works smoothly on desktop, tablet, and mobile devices.

      4000+ Calculators

      From EMI to BMI and GST, access multiple calculators in one place.

      Modern Interface

      Professional UI with clean layout, smooth animations, and easy navigation.

      Scroll to Top