Health Tools
Blood Pressure Checker
Enter your systolic and diastolic reading to see a classification using the ESC/ESH 2018 Hypertension Guidelines, the standard used by NHS clinicians across the UK.
Before you measure
- Rest for at least 5 minutes before measuring
- Take 2 to 3 readings one minute apart
- Use a validated upper-arm monitor
Check your reading
ESC/ESH 2018 Blood Pressure Classification
| Category | Systolic (mmHg) | Diastolic (mmHg) |
|---|---|---|
| Optimal | Below 120 | Below 80 |
| Normal | 120 to 129 | 80 to 84 |
| High Normal | 130 to 139 | 85 to 89 |
| Grade 1 Hypertension | 140 to 159 | 90 to 99 |
| Grade 2 Hypertension | 160 to 179 | 100 to 109 |
| Grade 3 (Severe) | 180 or above | 110 or above |
Source: Williams B, et al. 2018 ESC/ESH Guidelines for the management of arterial hypertension. European Heart Journal. Endorsed by NICE (NG136).
Clinical disclaimer
A single blood pressure reading is not enough to diagnose hypertension. White coat hypertension is common. If your systolic reading is 180 or above, or your diastolic is 110 or above, contact your GP or NHS 111 today. If you experience chest pain, severe headache, or visual changes alongside high readings, call 999.
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