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Wells Pulmonary Embolism Score Calculator

Pre-test probability of pulmonary embolism.

Compute the Wells pulmonary-embolism score, a weighted sum of clinical signs that estimates the pre-test probability of PE before imaging.

Priya Venkatesan By Priya Venkatesan
Reviewed by Dr. Helena Ortiz
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

Symptoms of DVT (3) + Alternative dx less likely (3) + HR > 100 (1.5) + Immobilisation/surgery (1.5) + Prior PE/DVT (1.5) + Hemoptysis (1) + Active malignancy (1).

In depth

Compute the Wells pulmonary-embolism score, a weighted sum of clinical signs that estimates the pre-test probability of PE before imaging.