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Blood Pressure Category Calculator

Work out blood pressure category instantly with clear inputs, formula shown and shareable results.

About Blood Pressure Category Calculator

Classifies a reading using the 2017 ACC/AHA thresholds and reports mean arterial pressure and pulse pressure from the same two numbers.

Formula

ACC/AHA 2017 bands

Normal <120/<80; Elevated 120-129/<80; Stage 1 130-139 or 80-89; Stage 2 >=140 or >=90; MAP = DBP + (SBP - DBP)/3

Worked example

With the default values below, Blood Pressure Category Calculator returns ACC/AHA category of Stage 1 hypertension. Change any input above and every figure here is recalculated in your browser.

Inputs used

Systolic pressureaccepts 60–260 mmHg
128 mmHg
Diastolic pressureaccepts 30–160 mmHg
82 mmHg

Results

ACC/AHA category
Stage 1 hypertension
Mean arterial pressure
97.3 mmHg
Pulse pressure
46 mmHg

Step by step

  1. 1Values used
  2. 2ACC/AHA 2017 bands
  3. 3ACC/AHA category= Stage 1 hypertension
  4. 4Mean arterial pressure= 97.3 mmHg
  5. 5Pulse pressure= 46 mmHg

Assumptions and limits

  • The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

Which number decides the category?

The higher category wins: if systolic and diastolic fall in different bands, the more severe band is reported.

What is mean arterial pressure?

The average pressure over a cardiac cycle, estimated as diastolic plus one third of the pulse pressure.

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