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Wells DVT Clinical Prediction Rule Calculator

Wells score — pretest probability of deep vein thrombosis.

Calculates the Wells DVT score to stratify pretest probability of deep vein thrombosis and guide D-dimer testing or ultrasound decisions.

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

Score = sum of clinical criteria; ≥2 = high, 1 = moderate, ≤0 = low

In depth

Calculates the Wells DVT score to stratify pretest probability of deep vein thrombosis and guide D-dimer testing or ultrasound decisions.