EASI Score Calculator

Written by Great Medico

Updated September 25, 2026 2 min read

How old is the patient?

Head and neck — affected area

Head and neck — redness

Head and neck — thickness

Head and neck — scratching

Head and neck — lichenification

Upper limbs — affected area

Upper limbs — redness

Upper limbs — thickness

Upper limbs — scratching

Upper limbs — lichenification

Trunk — affected area

Trunk — redness

Trunk — thickness

Trunk — scratching

Trunk — lichenification

Lower limbs — affected area

Lower limbs — redness

Lower limbs — thickness

Lower limbs — scratching

Lower limbs — lichenification

Your Result

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Ready to calculate

Enter values and click Calculate.

Atopic dermatitis severity is not just about how red the skin looks. EASI combines how much of four body regions is affected with the intensity of four visible eczema signs, producing a standardized score from 0 to 72.

What this calculator does

For head/neck, upper limbs, trunk and lower limbs, this calculator records an affected-area category plus redness, thickness, scratching/excoriation and lichenification from 0 to 3. It also asks whether the patient is under 8 because regional weighting differs in young children.

How to use it

Score each body region separately. First choose the area category from 0% through 90–100%, then rate each of the four signs using the same severity standard. EASI is designed for examination of active eczema; symptoms such as itch and sleep loss are important but are not part of this score.

How the calculation works

For each region, the four severity values are added, multiplied by the area score, then multiplied by the regional weight. At age 8 or older the weights are 0.1 head/neck, 0.2 upper limbs, 0.3 trunk and 0.4 lower limbs. Under age 8, head/neck becomes 0.2 and lower limbs 0.3.

Example

When every region has 0 affected area and all signs are scored 0, the result is 0/72, which falls in the clear/almost-clear range. As either affected area or sign intensity rises, the regional contribution and total EASI rise.

How to interpret the result

The score is useful for grading and tracking atopic dermatitis severity. This engine labels approximate ranges from clear/almost clear through very severe, but treatment decisions should consider the person’s symptoms, infection, body sites, quality of life and response to therapy—not EASI alone.

Limitations and notes

Accurate scoring takes training, and redness can be harder to judge in darker skin tones. EASI does not measure itch, sleep disturbance or psychological impact. It also should not be used to diagnose atopic dermatitis; it grades disease severity after the clinical condition has been identified.

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