Blood Pressure Calculator
Based on AHA 2017 Guidelines
Blood Pressure Reading
Additional Information
Your BP Position
Recommendations
Reading History
BP History Trend
BP Category Distribution
Heart Health Tips
DASH Diet
Follow the DASH diet: fruits, vegetables, whole grains, low-fat dairy
Regular Exercise
Aim for 150 minutes of moderate exercise per week
Limit Sodium
Keep sodium intake under 2,300mg per day (ideally 1,500mg)
Limit Alcohol
Men: max 2 drinks/day, Women: max 1 drink/day
Understanding Blood Pressure
Blood pressure is the force of blood pushing against the walls of your arteries. It's measured using two numbers: systolic pressure (when the heart beats) over diastolic pressure (when the heart rests between beats). Both numbers are important and measured in millimeters of mercury (mmHg).
Blood Pressure Categories (AHA 2017)
The American Heart Association classifies blood pressure into five categories:
- Normal: Less than 120/80 mmHg - Maintain healthy lifestyle
- Elevated: Systolic 120-129 AND diastolic less than 80 - Lifestyle changes needed
- High Blood Pressure (Stage 1): Systolic 130-139 OR diastolic 80-89 - Lifestyle changes + possibly medication
- High Blood Pressure (Stage 2): Systolic 140+ OR diastolic 90+ - Lifestyle changes + medication
- Hypertensive Crisis: Systolic over 180 AND/OR diastolic over 120 - Emergency care needed
Important Measurements
Beyond systolic and diastolic pressure, other important measurements include:
- MAP (Mean Arterial Pressure): Average pressure in arteries during one cardiac cycle. Formula: (SBP + 2×DBP) / 3. Normal range: 70-100 mmHg
- Pulse Pressure: Difference between systolic and diastolic pressure. Formula: SBP - DBP. Normal range: 40-60 mmHg
- BMI (Body Mass Index): Weight in kg divided by height in meters squared. Important for BP risk assessment
Risk Factors for High Blood Pressure
Several factors can increase your risk of developing high blood pressure:
- Uncontrollable: Age, family history, genetics, race/ethnicity
- Controllable: High sodium diet, physical inactivity, obesity, excessive alcohol, stress, smoking
- Medical conditions: Diabetes, kidney disease, sleep apnea, thyroid problems
Using This Calculator
Follow these steps:
- Step 1: Enter your systolic and diastolic blood pressure readings
- Step 2: Enter your pulse rate, height, weight, and age
- Step 3: Click "Analyze Blood Pressure" to see your classification
- Step 4: Review your MAP, pulse pressure, and BMI
- Step 5: Check personalized recommendations based on your category
- Step 6: Save readings to track your BP history over time
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