There isn’t a separate “normal” blood-pressure number for every adult age. For adults, the same basic thresholds are used across age groups, although an individual’s treatment target can differ depending on their health and circumstances. The 2025 American Heart Association guideline defines normal adult BP as below 120/80 mmHg.
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professional.heart.org
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Adult blood-pressure guide
Reading Category
Below 120/80 Normal
120–129 and below 80 Elevated
130–139 or 80–89 Stage 1 hypertension
140+ or 90+ Stage 2 hypertension
Above 180 and/or 120 Severe hypertension / possible emergency
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professional.heart.org
So, for example, a 70-year-old doesn’t automatically have a “normal” BP of 140/90 just because they’re older. Age increases the likelihood of hypertension, but it doesn’t redefine normal blood pressure.
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nhs.uk
Children are different: their normal BP is assessed using age, sex, and height, so adult thresholds shouldn’t be applied to them.
If you give me your age and your blood-pressure reading (for example, 145/85), I can tell you what category it falls into and what it generally means.
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