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NEWS2 (National Early Warning Score 2) Calculator

Sum of 7 weighted physiologic subscores (range 0-20).

Compute the National Early Warning Score 2 (NEWS2) used by the NHS for early detection of clinical deterioration. Adds weighted subscores for respiratory rate, SpO₂ (Scale 1), supplemental oxygen, systolic BP, heart rate, level of consciousness (ACVPU), and temperature. Score ≥ 5 should trigger an urgent clinical response.

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Total NEWS2 = Σ seven weighted subscores.

In depth

Compute the National Early Warning Score 2 (NEWS2) used by the NHS for early detection of clinical deterioration. Adds weighted subscores for respiratory rate, SpO₂ (Scale 1), supplemental oxygen, systolic BP, heart rate, level of consciousness (ACVPU), and temperature. Score ≥ 5 should trigger an urgent clinical response.