HealthFree

Wells Score (DVT and PE)

Calculate the Wells criteria for Deep Vein Thrombosis (DVT) and Pulmonary Embolism (PE) to assess the pre-test probability of a blood clot.

Enter Values

Condition

Active cancer (treatment within 6 months or palliative) (+1)

DVT: Paralysis, paresis, or recent cast immobilization of leg (+1)

DVT: Bedridden > 3 days or major surgery within 12 weeks (+1)

DVT: Localized tenderness along deep venous system (+1)

DVT: Entire leg swollen (+1)

DVT: Calf swelling > 3cm compared to other leg (+1)

DVT: Pitting edema (confined to symptomatic leg) (+1)

DVT: Collateral superficial veins (non-varicose) (+1)

DVT: Previously documented DVT (+1)

DVT: Alternative diagnosis as likely or more likely (-2)

PE: Clinical signs and symptoms of DVT (+3)

PE: PE is #1 diagnosis or equally likely (+3)

PE: Heart rate > 100 bpm (+1.5)

PE: Immobilization or surgery in past 4 weeks (+1.5)

PE: Previous DVT or PE (+1.5)

PE: Hemoptysis (coughing blood) (+1)

Result

Enter values above and click Calculate to see your result.

AI Assistant

Ask about this calculator

I can help you understand the wells score (dvt and pe) formula, interpret your results, and answer follow-up questions.

Try asking

Our AI assistant provides general estimates and advice only. Please consult a qualified healthcare professional before making any health-related decisions.

Formula

Core Formula

Weighted criteria based on clinical findings.

How it works: Combines risk factors (cancer, immobilization) and clinical signs (leg swelling) to guide the need for ultrasound or D-dimer testing.

Worked Example

Active cancer (+1), Swollen entire leg (+1), Previous DVT (+1) -> Wells Score 3 (High Probability).

Frequently Asked Questions

Is the score different for DVT and PE?

Yes. While they share some risk factors, the scoring weights and clinical criteria differ between the two conditions.

What does a low score mean?

If the score is low and a D-dimer test is negative, the diagnosis of DVT or PE can be safely ruled out without imaging.

What happens for a high score?

Diagnostic imaging (like ultrasound for DVT or CTPA for PE) is usually required regardless of the D-dimer result.

Is it possible to embed the Wells Score (DVT and PE) on another website?

Yes, embedding the Wells Score (DVT and PE) is free. Hit the "Embed" button on this page, adjust the width, height, and theme, then grab the iframe code. It works on WordPress, Wix, Squarespace, Shopify, and plain HTML pages. No registration needed. Full instructions at calculory.com/services/embed-calculators.

Medical Disclaimer

This calculator is provided for informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making any decisions based on these results. Do not disregard or delay seeking medical advice because of information obtained from this tool.

AI Assistant

Ask about this calculator

I can help you understand the wells score (dvt and pe) formula, interpret your results, and answer follow-up questions.

Try asking

Our AI assistant provides general estimates and advice only. Please consult a qualified healthcare professional before making any health-related decisions.

Related Calculators

PERC Rule Calculator NIHSS Calculator Shock Index Calculator

More Health Calculators

View all

Sleep Cycle Calculator

Find ideal bedtimes based on 90-minute sleep cycles.

Steps to Kilometers Calculator

Convert steps to distance, calories, and walking time.

Corrected Age Calculator

Compute corrected age from birth and due dates.

Gestational Age Calculator

Estimate gestational age from reference date.

All articles

Health5 min

Biological Age vs Chronological Age: Real Health in 2026

Biological age tracks how fast your body is aging, not just how many birthdays you have had. Learn how it is calculated in 2026 and how to lower it with measurable habits.

Read article

Health6 min

Gestational Age vs Due Date: What Is the Difference?

Gestational age vs due date explained in plain language. Learn how weeks pregnant, expected delivery date, LMP, ultrasound, and IVF dating fit together.

Read article

Health5 min

How to Calculate Corrected Age for Premature Babies

Learn how to calculate corrected age for premature babies using birth date, due date, and weeks early. Includes step-by-step examples and milestone guidance.

Read article