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Calculators
Health Calculators
Cardiovascular Calculators
ECG Heart Rate (Boxes Method)

ECG Heart Rate Calculator (Boxes Method)

Quickly estimate heart rate from an ECG tracing using the boxes method. Simply input the number of large boxes between R waves.

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About ECG Heart Rate (Boxes Method)

The ECG Heart Rate (Boxes Method) tool provides a rapid and practical solution for estimating heart rate directly from an ECG tracing. Designed for healthcare professionals, medical students, and educators, this tool streamlines a fundamental aspect of ECG interpretation. By simply inputting the number of large boxes between successive R waves, users receive an instant, accurate approximation of the patient's heart rate. This method leverages the standardized ECG paper speed and calibration, making complex manual calculations unnecessary. It serves as an invaluable aid for quick patient assessment, enhancing efficiency in clinical environments and reinforcing core ECG understanding with reliable results.

Next Steps
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ECG Small Boxes ↔ Time Converter

1 Small Box = 40 ms

1 Large Box (5 small) = 200 ms