Blood pressure calculator
Type the two numbers from your cuff and see which range they fall in, and what to do next.
How the result is classified
From the 2024 European guideline and the 2025 US guideline. A range is not a diagnosis.
Which matters more, systolic or diastolic?
Both count. A reading falls into the higher range of its two numbers, so 118 over 88 is hypertension under the US guideline even though the systolic value is normal. Systolic pressure often becomes a more important risk factor after the age of 50.
Does my age change the ranges?
The categories shown here do not change with age, so there is no age field. Your personal treatment target may be different, particularly if you are older or have another health condition.
Why are the European and US ranges different?
Both read the same numbers, but the US guideline splits hypertension into two stages and starts stage 1 at 130 or 80. The European guideline calls that band elevated and starts hypertension at 135/85 at home.
Sources: 2024 ESC Guidelines for the management of elevated blood pressure and hypertension, American Heart Association, Understanding Blood Pressure Readings. General information, not medical advice.