About Careers Internship MedBlogs Contact us

Blood Pressure Calculator

Last Updated on Nov 05, 2021

Are you confused with your blood pressure numbers? Not sure when the numbers indicate high blood pressure or low blood pressure?

If you have recently checked your blood pressure and know the top and bottom numbers, we suggest that you key the numbers in the box below and instantly get an idea whether it is normal or abnormal. The calculator compares your blood pressure with that of the normal range for your age group and detects if there is any abnormality. The final result will help you understand why it is important to regularly keep track of your blood pressure readings and gives some tips on how to maintain a normal blood pressure. The American Heart Association (AHA) and other medical organizations recommend that people with high blood pressure or hypertension monitor their blood pressure at home. Home monitoring(1Trusted Source

Home monitoring confirms clinic diagnosis of high blood pressure

Go to source

) is easy and saves both time and money and at the same time avoids white coat hypertension(2Trusted Source

Mallion JM. Clinical significance and treatment requirements in white coat and masked hypertension. Special Issues in Hypertension. 2012;13-24. DOI:10.1007/978-88-470-2601-8_2

Go to source

) Blood pressure is a 'mathematical representation' of two forces.(3Trusted Source

Mathematical Modeling of Noninvasive Blood Pressure Estimation Techniques-Part II: Brachial Hemodynamics. Mauro Ursino, Cristina Cristalli. J Biomech Eng. Feb 1995, 117(1): 117-126 (10 pages)

Go to source

) The top number (systolic) is the force applied against the walls of the arteries when the heart beats and the bottom number (diastolic) is the force applied against the walls between the two beats of the heart (i.e. when heart is in a relaxed state). A blood pressure range of 110/70 to 120/80 is considered normal.


Enter Your Details
Gender * Male    Female
Age * (15 - 80 years)
Systolic pressure (Top number) /
Diastolic pressure (Bottom number) *
/ (mm Hg)
Are you taking any blood pressure tablets? * Yes   No
* Required

Note: This calculator is only for people over 15 years of age
The readings should be taken when a person is in a relaxed and resting state. The test should be repeated at different intervals of the day or over a few days until similar values are consistently obtained. Measurement should be avoided immediately after exercise or a meal, as blood pressure may be high at these times.
Beware also of the White Coat Syndrome! It is a condition in which some people blood pressure is high in a doctor’s office but normal at home. This may be because of anxiety and stress. White Coat Syndrome may lead to misdiagnosis and unnecessary treatment.

Foods that Can Lower Your Blood Pressure

Foods that Can Lower Your High Blood Pressure - Slideshow


Do remember that it is important to measure the blood pressure (BP) properly for the management of hypertension(4Trusted Source

Measurement of Blood Pressure in Humans: A Scientific Statement From the American Heart Association | Hypertension 2019; 73:e35-e66. DOI: 10.1161/HYP .0000000000000087.

Go to source

) and this may require more than one reading with the right cuff size, its correct positioning on the arm, remaining still and avoiding caffeinated drinks or smoking(5Trusted Source

Monitoring Your Blood Pressure at Home

Go to source

). Both manual or automated blood pressure measurement requires the same precautions.


Monitoring Blood Pressure at Home

High blood pressure or hypertension  is a silent disease and is a major cause of death (6Trusted Source

High Blood Pressure

Go to source

). There maybe no symptoms or very subtle indicators like anxiety, excessive sweating, palpitation, fatigue, dizziness or ringing in the ear. Monitoring the blood pressure at home can prevent the complications such as heart attack and stroke associated with high blood pressure(7Trusted Source

Health Threats From High Blood Pressure

Go to source

).  Home blood pressure devices usually use automatic blood pressure cuff and gauge. Buy one that is authenticated by validated by a reputable medical association. The following instructions can help with the home monitoring of your blood pressure-


  1. Home monitoring confirms clinic diagnosis of high blood pressure - (https://newsroom.heart.org/news/home-monitoring-confirms-clinic-diagnosis-of-high-blood-pressure?preview=3656)
  2. Mallion JM. Clinical significance and treatment requirements in white coat and masked hypertension - (https://www.semanticscholar.org/paper/Clinical-Significance-and-Treatment-Requirements-in-Mallion/699c7d4ade259acf4755cdb54d93037c29de569d)
  3. Mathematical Modeling of Noninvasive Blood Pressure Estimation Techniques—Part II - (https://doi.org/10.1115/1.2792259)
  4. Blood pressure chart - (http://www.bloodpressureuk.org/BloodPressureandyou/Thebasics/Bloodpressurechart)
  5. Measurement of Blood Pressure in Humans - (https://www.heart.org/en/health-topics/high-blood-pressure/understanding-blood-pressure-readings/monitoring-your-blood-pressure-at-home)
  6. Monitoring Your Blood Pressure at Home - (https://www.heart.org/en/health-topics/high-blood-pressure/understanding-blood-pressure-readings/monitoring-your-blood-pressure-at-home)
  7. High Blood Pressure - (https://www.cdc.gov/bloodpressure/index.htm)
  8. 8 steps to ensure your patients get their BP right - (https://www.ama-assn.org/delivering-care/hypertension/8-steps-ensure-your-patients-get-their-bp-right)
  9. Monitoring Your Blood Pressure at Home - (https://www.heart.org/en/health-topics/high-blood-pressure/understanding-blood-pressure-readings/monitoring-your-blood-pressure-at-home)
  10. How to use a blood pressure monitor - (http://www.bloodpressureuk.org/BloodPressureandyou/Homemonitoring/Howtomeasure)
  11. Home Blood Pressure Monitoring Explained - (https://bihsoc.org/wp-content/uploads/2017/09/Home_blood_pressure_monitoring_explained.pdf)
  12. Blood Pressure Monitoring at Home - (https://familydoctor.org/blood-pressure-monitoring-at-home/)
  13. Self-Measurement of Blood Pressure at Home in the Management of Hypertension - (http://www.clinmedres.org/content/3/1/19.long)

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.


Ole70, Denmark

What is the source of the equations behind the blood pressure calculator?

Consult Cardiologists Online

Dr. Rajeev Aggarwal
Dr. Rajeev Aggarwal
37 years experience
Family Medicare and Heart Centre, Dev Nagar
Teleconsult Now View Profile
Dr. Udaya Nath Sahoo
Dr. Udaya Nath  Sahoo
49 years experience
Gayarani Sevasadan telemedicine and research centre, Near Bhaijee restaurant
Teleconsult Now View Profile
Dr. Abbas Ali Sheikh
Dr. Abbas Ali Sheikh
29 years experience
Teleconsult Now View Profile
Dr. Srinivasa Prasad
Dr. Srinivasa Prasad
MBBS, MD, DM Cardiology, Post DM Fellowship, FSCAI
21 years experience
Apoorva Superspeciality Medical Centre, Jayanagar
Teleconsult Now View Profile
View All Cardiologists

Recommended Reading
Health Calculators A-Z

Cardiac Tools
Ideal Chest Measurement
Cholesterol Risk Calculator
Heartbeat Calculator
Blood Pressure Chart
Activity Calorie Calculator
View all
Health Calculator Search


    What's New on Medindia
    Top 10 Vitamin B12 Foods for Vegetarians - Slideshow
    Targeted Screening Program Beneficial for Prostate Cancer Screening
    Are Menopause Symptoms Troubling You?: Try these Options
    View all

    Medindia Newsletters Subscribe to our Free Newsletters!
    Terms & Conditions and Privacy Policy.

    Most Popular on Medindia

    Vent Forte (Theophylline) Drug Side Effects Calculator Selfie Addiction Calculator Find a Doctor Noscaphene (Noscapine) Find a Hospital Iron Intake Calculator Daily Calorie Requirements Blood Pressure Calculator Post-Nasal Drip

    Disclaimer - All information and content on this site are for information and educational purposes only. The information should not be used for either diagnosis or treatment or both for any health related problem or disease. Always seek the advice of a qualified physician for medical diagnosis and treatment. Full Disclaimer

    © All Rights Reserved 1997 - 2022

    This site uses cookies to deliver our services. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Use