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Wells Score for Pulmonary Embolism (PE) Calculator

Pre-test probability of PE from clinical features.

Calculates the Wells PE score from 7 clinical criteria. Score ≤ 4 = PE unlikely, > 4 = PE likely. Can guide D-dimer and CTPA decision-making.

Marcus Laurent By Marcus Laurent
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

Sum of weighted clinical criteria; 0–12.5 scale.

In depth

Calculates the Wells PE score from 7 clinical criteria. Score ≤ 4 = PE unlikely, > 4 = PE likely. Can guide D-dimer and CTPA decision-making.