What is normal blood pressure?

Under current US guidelines, normal is below 120/80 mmHg. Elevated is 120–129 systolic with diastolic under 80.

Health

Blood Pressure

Blood pressure category

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Systolic (mmHg)

Diastolic (mmHg)

Reference classification. Consult a physician if readings are abnormal.

Classifies a blood pressure reading using simplified AHA/ACC-style categories in mmHg.

Who it's for: Home BP monitor users, hypertensive patients tracking readings, and wellness screenings.

Takes systolic (top) and diastolic (bottom) values in mmHg.

Assigns category: Normal, Elevated, Stage 1, Stage 2 hypertension, or Crisis.

Uses the higher category when systolic and diastolic fall in different stages.

Rest seated for 5 minutes with feet flat and arm supported at heart level.
Enter Systolic — the first/larger number (e.g., 120).
Enter Diastolic — the second/smaller number (e.g., 80).
Read Blood pressure formatted as systolic/diastolic.
Check Category against AHA guidelines.
If Stage 2 or Crisis, contact your doctor promptly; Crisis (≥180/120) may need emergency care.

Take two readings one minute apart and average — single readings can be misleading.
Home monitors should be validated and cuff size must match arm circumference.

What is normal blood pressure?: Under current US guidelines, normal is below 120/80 mmHg. Elevated is 120–129 systolic with diastolic under 80.