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Normal Vital Signs — Adult (18–65 years)
Adult ranges are the ones most people know: a resting heart rate of 60–100, breathing 12–20 times a minute, and blood pressure below 120/80 considered normal. Fitness matters — a trained athlete may rest happily in the 40s or 50s — and so does technique: five minutes of seated rest, back supported, feet flat and no talking gives the reading worth trusting.
| Vital sign | Normal range — adult (18–65 years) |
|---|---|
| Heart rate (awake, resting) | 60–100 beats/min |
| Breathing rate | 12–20 breaths/min |
| Blood pressure — systolic | 90–120 mmHg |
| Blood pressure — diastolic | 60–80 mmHg |
| Oxygen saturation (SpO2, room air) | 95% or higher |
| Body temperature | 97–99 °F (36.1–37.2 °C) |
◆ Good to know
Rest seated for five minutes before measuring blood pressure, with your back supported and feet flat — talking, crossing your legs or a recent coffee can all move the reading.
Measuring at this age
- Blood pressure: empty your bladder, sit for five minutes, back supported, feet flat, arm supported at heart level, correct cuff size, no talking.
- Take two readings a minute apart and average them; home readings are usually a little lower than clinic readings.
- Resting heart rate: measure after sitting quietly for five minutes, or on waking.
Fever at this age
A temperature of 100.4°F (38.0°C) or higher is a fever. Thresholds, measuring methods and warning signs by age are covered in the fever guide — and any fever in a baby under 3 months old needs medical care the same day.
The full eight-band chart is on the vital signs by age hub, and as a printable wall chart.