About the NEWS2 Score Calculator
The National Early Warning Score 2 (NEWS2) is the Royal College of Physicians’ standardised system for detecting clinical deterioration in adults in hospital and ambulance settings. Endorsed by NHS England in 2017, it scores six physiological parameters — respiration rate, oxygen saturation, systolic blood pressure, pulse rate, level of consciousness or new confusion, and temperature — and adds 2 points if the patient needs supplemental oxygen.
This calculator is for nurses, doctors, paramedics and students. Enter the latest set of observations and it returns the aggregate score, the clinical risk band (low, low–medium, medium or high), the RCP’s minimum monitoring frequency for that band, and a breakdown showing which parameter contributes each point. Use SpO₂ scale 2 only for patients with confirmed hypercapnic respiratory failure who have a prescribed target saturation of 88–92%, as decided by a clinician.
NEWS2 is designed for adults aged 16 and over. It is not validated for children or in pregnancy (where obstetric early warning scores are used), and it supports — never replaces — clinical judgement. Any concern about a patient warrants escalation whatever the score.
With the default inputs, the news2 score is 0. Change any value above to recalculate instantly.
How to use the news2 score calculator
- 1Take a full set of observations: respiration rate, SpO₂, blood pressure, pulse, consciousness and temperature.
- 2Select SpO₂ scale 2 only if a clinician has documented a target of 88–92% for hypercapnic respiratory failure.
- 3Tick “on supplemental oxygen” if the patient is receiving any oxygen.
- 4Enter the values and read the total, risk band and minimum monitoring frequency.
- 5Escalate according to your local NEWS2 response protocol, and whenever you are concerned regardless of score.
Formula and method
Each parameter scores 0–3 according to how far it lies from the normal range: respiration ≤ 8 (3), 9–11 (1), 12–20 (0), 21–24 (2), ≥ 25 (3); SpO₂ scale 1 ≤ 91 (3), 92–93 (2), 94–95 (1), ≥ 96 (0); systolic BP ≤ 90 (3), 91–100 (2), 101–110 (1), 111–219 (0), ≥ 220 (3); pulse ≤ 40 (3), 41–50 (1), 51–90 (0), 91–110 (1), 111–130 (2), ≥ 131 (3); any new confusion, voice, pain or unresponsive (3); temperature ≤ 35.0 (3), 35.1–36.0 (1), 36.1–38.0 (0), 38.1–39.0 (1), ≥ 39.1 °C (2). Supplemental oxygen adds 2.
SpO₂ scale 2 scores ≤ 83 (3), 84–85 (2), 86–87 (1), 88–92 or ≥ 93 on air (0), and on oxygen 93–94 (1), 95–96 (2), ≥ 97 (3), so over-oxygenation is flagged. Totals of 0–4 are low risk, a 3 in any single parameter is low–medium, 5–6 is medium and 7 or more is high clinical risk.
Worked examples
Normal observations on room air
Respiration 18, SpO₂ 96% on air, BP 120, pulse 80, alert and 37 °C all fall in the 0-point bands, so NEWS2 is 0 and the minimum monitoring frequency is 12-hourly.
Febrile, tachypnoeic patient on oxygen
Respiration 22 (2) + SpO₂ 94% (1) + oxygen (2) + BP 105 (1) + pulse 105 (1) + temperature 38.4 °C (1) = 8. A score of 7 or more is high clinical risk and calls for an emergency response.
Single red score: respiration rate 26
Only respiration scores (3 for ≥ 25/min), so the total is 3. Because a single parameter scores 3, NEWS2 classes this as low–medium risk needing an urgent ward-based review.
COPD patient on scale 2 with prescribed oxygen
On scale 2, SpO₂ 90% is within the 88–92% target and scores 0. Oxygen adds 2 and a pulse of 95 adds 1, for a total of 3 with no single red score — low risk.
Frequently asked questions
What NEWS2 score is concerning?+
A total of 5 or more, or a score of 3 in any single parameter, should prompt an urgent clinical review. A total of 7 or more is high risk and triggers an emergency response, often including critical care outreach.
When should SpO2 scale 2 be used?+
Only for patients with confirmed hypercapnic respiratory failure, usually due to COPD, who have a clinician-prescribed target saturation of 88–92%. Using scale 2 in other patients can mask hypoxaemia.
What does the C in ACVPU mean?+
C stands for new confusion, added in NEWS2. New-onset confusion, disorientation or agitation scores 3, the same as responding only to voice or pain, or being unresponsive.
Can NEWS2 be used for children or pregnant women?+
No. NEWS2 is validated for adults aged 16 or over. Children are assessed with paediatric early warning scores and pregnant women with modified obstetric early warning scores.
How often should observations be done for each NEWS2 score?+
The RCP suggests at least 12-hourly observations for a score of 0, 4–6-hourly for 1–4, at least hourly for a single red score or a total of 5–6, and continuous monitoring for 7 or more. Local policies may be stricter.
For healthcare professionals and education only. This calculator implements a published formula or score but is not a diagnosis and does not replace clinical judgment. Verify inputs and results against the original source before using them in patient care.