How to calculate ventricular rate

Written by paul ramone
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to calculate ventricular rate
Calculate the ventricular rate with an ECG (Comstock/Comstock/Getty Images)

An ECG, also known as an electrocardiogram, is a useful display of the heart's rhythm which can reveal atrial rate and ventricular rate. It is also useful for determining any arrhythmia or dysfunctions with the heart. With the typical ECG recorded at a rate of 25mm/sec, it is simple to determine the ventricular rate with a simple calculation. Once you have properly identified the waves in the chart, you can quickly calculate the distance between the waves and ultimately the ventricular rate.

Skill level:
Moderately Easy


  1. 1

    Identify the "R" waves in the ECG chart. The "R" waves are the tallest crest of each wave. With a normalk heart rate, these "R" waves will occur at regular and rhythmic intervals. If you need help identifying the wave, see the diagram in link below.

  2. 2

    Count the small squares between the crest of two adjacent "R" waves. The number of squares will be the same between each "R" wave in a regular heart.

  3. 3

    Divide 1500 by the number of squares you counted between two "R" waves. For example if you counted 25 boxes, the ventricular heart rate would be 1500 divided by 25 or 60 beats per minute.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.