Free Blood Pressure Calculator: Check Your Reading Online

Enter your systolic and diastolic readings to instantly determine your blood pressure category based on the latest American Heart Association (AHA) guidelines.

What Do Your Blood Pressure Numbers Mean?

Blood pressure is the force of blood pushing against artery walls. A reading has two numbers that are crucial indicators of your heart health. Consistently high blood pressure (hypertension) increases the risk of serious health issues, making regular monitoring essential.

  • Systolic (top number): The pressure when your heart beats.
  • Diastolic (bottom number): The pressure when your heart rests between beats.

The 5 Blood Pressure Categories (AHA Guidelines)

CategorySystolic (mmHg)Diastolic (mmHg)
NormalLess than 120Less than 80
Elevated120 – 129Less than 80
High BP (Stage 1)130 – 13980 – 89
High BP (Stage 2)140 or higher90 or higher
Hypertensive CrisisHigher than 180Higher than 120

Disclaimer: This tool is for informational purposes only. Consult with a healthcare professional for medical advice, diagnosis, or treatment.

Check Your BP Category