While medical guidelines consider less than 120/80 mm Hg as the ideal normal blood pressure for adults regardless of age, average blood pressure tends to shift gradually over a lifetime as blood vessels naturally become stiffer.
Blood pressure is measured using two numbers: systolic (top number, pressure when the heart beats) and diastolic (bottom number, pressure when the heart rests between beats).
1. Normal Blood Pressure in Adults (Ages 18 and Older)
For adults, clinical guidelines use universal categories rather than strict sliding scales by age, though averages do trend upward over time:
| Category | Systolic (mm Hg) | Diastolic (mm Hg) |
| Normal | Less than 120 | AND less than 80 |
| Elevated | 120–129 | AND less than 80 |
| Hypertension Stage 1 | 130–139 | OR 80–89 |
| Hypertension Stage 2 | 140 or higher | OR 90 or higher |
Average Blood Pressure Ranges by Adult Age Group & Gender:
While <120/80 mm Hg remains the target, statistical averages shift slightly by demographics:
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Ages 18–39:
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Women: ~110/68 mm Hg
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Men: ~119/70 mm Hg
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Ages 40–59:
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Women: ~122/74 mm Hg
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Men: ~124/77 mm Hg
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Ages 60 and older:
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Women: ~139/68 mm Hg
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Men: ~133/69 mm Hg(Note: While averages in older age groups can drift higher, readings consistently over 130/80 or 140/90 are still managed or treated to prevent cardiovascular strain).
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2. Normal Blood Pressure in Infants and Children
Unlike adults, children’s normal blood pressure ranges depend heavily on age, height, and gender. Pediatric guidelines evaluate readings using percentiles based on these factors rather than a single fixed number:
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Newborns (up to 1 month): Systolic: 60–90 | Diastolic: 20–60
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Infants (1 month to 1 year): Average systolic around 75–100
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Toddlers (1 to 3 years): Systolic: 95–105 | Diastolic: 53–66
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Preschoolers (3 to 5 years): Systolic: 95–110 | Diastolic: 56–70
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School-age children (6 to 11 years): Systolic: 97–112 | Diastolic: 57–71
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Adolescents (12 to 17 years): Systolic: 112–128 | Diastolic: 66–80(For children, a normal reading is generally defined as being below the 90th percentile for their specific age, height, and gender).
Quick Health Tip: Blood pressure naturally fluctuates throughout the day based on stress, physical activity, caffeine, and posture. A single high reading doesn’t automatically mean you have hypertension, but consistently elevated numbers should be evaluated by a healthcare professional.
Are you looking at blood pressure guidelines for a specific age group, or did you recently get a reading you’d like help understanding?
