Blood Pressure Calculator
Free Blood Pressure Calculator based on AHA guidelines. Check if your BP is normal, elevated, or high. Calculate pulse pressure and understand your readings.
About This Calculator
Understanding your blood pressure numbers is crucial for heart health. This calculator helps you interpret your systolic and diastolic readings according to AHA guidelines.
Frequently Asked Questions
What do blood pressure numbers mean?
Systolic (top number) measures pressure when your heart beats. Diastolic (bottom number) measures pressure between beats. Normal is below 120/80. Elevated is 120-129/80. High BP Stage 1 is 130-139/80-89. High BP Stage 2 is 140+/90+. Hypertensive crisis is 180+/120+.
What is pulse pressure?
Pulse pressure is the difference between systolic and diastolic pressure (systolic minus diastolic). Normal pulse pressure is about 40 mmHg. Higher pulse pressure (60+) may indicate stiff arteries and increased cardiovascular risk.
How can I lower my blood pressure?
Lifestyle changes: Reduce sodium intake (<2300mg/day), exercise 150+ min/week, maintain healthy weight, limit alcohol, quit smoking, manage stress, eat DASH diet (fruits, vegetables, whole grains, low-fat dairy), get 7-9 hours sleep.
What is a hypertensive crisis?
A hypertensive crisis is when BP suddenly rises to 180/120 or higher. This is a medical emergency that can cause stroke, heart attack, or organ damage. Symptoms include severe headache, chest pain, shortness of breath, vision changes. Call emergency services immediately.