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Free Wells DVT score calculator with the standard clinical criteria checklist, automatic total, and low / moderate / high probability bands. Use with our other clinical scores and tools on the medical & health hub.
Last updated: April 13, 2026
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Check each criterion that applies. The last item subtracts 2 points when an alternative diagnosis is at least as likely as DVT.
+1 point
+1 point
+1 point
+1 point
+1 point
+1 point
+1 point
+1 point
-2 points
Total score
0
Category
Low clinical probability
Lower pretest probability in typical models; many pathways use D-dimer to rule out DVT when score is low and assay is negative.
Educational tool only
This score does not replace clinical judgment, physical examination, D-dimer interpretation, ultrasound, or institutional pathways. Pretest probability and management differ by guideline version and setting.
Points capture major thrombosis risk contexts such as active malignancy, paralysis or casting, and recent bed rest or major surgery.
Tenderness along deep veins, whole-leg swelling, asymmetric calf size, pitting edema, and collateral superficial veins each add one point when present.
If another diagnosis is at least as plausible as DVT, the score subtracts two points—clinical judgment is essential for this item.
Typical teaching bands: score ≤0 low probability, 1–2 moderate, ≥3 high. Pair with guideline-based D-dimer and imaging strategies—not with this page alone.
Each checkbox maps to one term in the published Wells model for suspected DVT. The tool sums integer points (including −2 for alternative diagnosis) and maps the total to a three-level probability label used in many educational summaries. Your hospital may use different paired tests or cutoffs.
Browse more prognostic scores for structured clinical assessment.
Get a Custom Calculator for Your PlatformTwo one-point findings (for example localized tenderness and calf swelling >3 cm) yield a total of 2, often placed in the moderate band. Adding a third one-point finding (such as pitting edema) brings the total to 3, which many summaries call high clinical probability—still subject to your local pathway.
Share it with trainees and teams who use DVT pathways
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