Blood Pressure Category Calculator
Use this blood pressure calculator to get your AHA blood pressure category from a single reading. Enter your systolic blood pressure (top number) and diastolic blood pressure (bottom number) in mmHg and we’ll label the result using the AHA blood pressure chart categories: Normal, Elevated, Stage 1, Stage 2, or Crisis. If either number is in the crisis range, you’ll see an urgent warning. Informational only — not medical advice.
Enter your blood pressure reading
Systolic (top) and diastolic (bottom) in mmHg. Example: 128 / 78.
- Result: AHA blood pressure category (Normal, Elevated, Stage 1, Stage 2, Crisis)
- Crisis warning if systolic over 180 or diastolic over 120
- Tip: paste a reading like 120/80 into either box
Results update automatically when both numbers are valid.
Methods & assumptions
This variant focuses on Blood Pressure Category Calculator.
This tool converts a blood pressure reading (systolic/diastolic in mmHg) into an American Heart Association (AHA) blood pressure category label.
If systolic and diastolic fall in different categories, we use the higher category (example: 118/82 mmHg is Stage 1 because the diastolic value is 82).
Crisis overrides all other categories: systolic over 180 or diastolic over 120.
Blood pressure category chart (AHA systolic/diastolic ranges):
- Normal:Systolic under 120 and diastolic under 80
- Elevated:Systolic 120 to 129 and diastolic under 80
- Stage 1:Systolic 130 to 139 or diastolic 80 to 89
- Stage 2:Systolic 140 or higher or diastolic 90 or higher
- Crisis:Systolic over 180 or diastolic over 120
More variants
Focused on systolic diastolic category.
Focused on blood pressure range chart.
Questions & Answers
Clear answers, so you can use this tool with confidence.
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