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Blood Pressure Calculator

Health
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This calculator categorizes blood pressure readings based on systolic and diastolic pressure levels, identifying whether a reading falls into normal, elevated, or various hypertension stages.

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How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Systolic Pressure (mmHg) and Diastolic Pressure (mmHg) in the units shown.

Step 2

Read Blood Pressure Category in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Normal

Systolic Pressure (mmHg): 118 mmHg; Diastolic Pressure (mmHg): 78 mmHg

Blood Pressure Category: Normal

Elevated

Systolic Pressure (mmHg): 125 mmHg; Diastolic Pressure (mmHg): 75 mmHg

Blood Pressure Category: Elevated

Hypertension Stage 1

Systolic Pressure (mmHg): 135 mmHg; Diastolic Pressure (mmHg): 85 mmHg

Blood Pressure Category: Hypertension Stage 1

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Important

Use the result as an estimate and confirm any medical decisions with a qualified professional.