EASI Scoring Calculator
Calculate the Eczema Area and Severity Index (EASI) to assess the extent and severity of atopic dermatitis.
1. Head & Neck (10%)
0: None
1: 1% – 9%
2: 10% – 29%
3: 30% – 49%
4: 50% – 69%
5: 70% – 89%
6: 90% – 100%
Severity Signs (0-3)
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
2. Upper Limbs (20%)
0: None
1: 1% – 9%
2: 10% – 29%
3: 30% – 49%
4: 50% – 69%
5: 70% – 89%
6: 90% – 100%
Severity Signs (0-3)
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
3. Trunk (30%)
0: None
1: 1% – 9%
2: 10% – 29%
3: 30% – 49%
4: 50% – 69%
5: 70% – 89%
6: 90% – 100%
Severity Signs (0-3)
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
4. Lower Limbs (40%)
0: None
1: 1% – 9%
2: 10% – 29%
3: 30% – 49%
4: 50% – 69%
5: 70% – 89%
6: 90% – 100%
Severity Signs (0-3)
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
0: None
1: Mild
2: Moderate
3: Severe
Total EASI Score
0.0
Calculating…
What is the EASI Score?
The Eczema Area and Severity Index (EASI) is a standardized tool used by dermatologists to measure the severity and extent of atopic dermatitis (eczema). It is widely considered the gold standard in clinical trials and advanced practice.
Unlike simpler scoring systems, EASI accounts for both the intensity of the disease signs and the surface area affected across four distinct body regions.
How is EASI Calculated?
The calculator evaluates four body regions, each weighted differently based on the approximate percentage of skin surface area they represent in an adult:
- Head & Neck: Weight 0.1 (10%)
- Upper Limbs: Weight 0.2 (20%)
- Trunk: Weight 0.3 (30%)
- Lower Limbs: Weight 0.4 (40%)
The 4 Signs of Severity
For each region, four clinical signs are graded on a scale of 0 to 3:
- Erythema: Redness of the skin.
- Induration/Papulation: Thickness or swelling.
- Excoriation: Scratch marks.
- Lichenification: Thickening of the skin with accentuated skin markings (leathery appearance).
Interpreting Your Score
The maximum EASI score is 72.0. While clinical definitions can vary slightly, general severity stratifications are:
| Score Range | Severity Classification |
|---|---|
| 0 | Clear |
| 0.1 – 1.0 | Almost Clear |
| 1.1 – 7.0 | Mild |
| 7.1 – 21.0 | Moderate |
| 21.1 – 50.0 | Severe |
| 50.1 – 72.0 | Very Severe |
Frequently Asked Questions
Can I use this calculator for children?
This calculator uses the standard weighting for adults (age 8+). For children under 8 years old, the weighting differs slightly (Head: 0.2, Upper Limbs: 0.2, Trunk: 0.3, Lower Limbs: 0.3) to account for their larger head-to-body ratio.
What is the Area Score?
The area score (0-6) estimates the percentage of skin involved in a specific body region. For example, a score of 3 indicates that 30% to 49% of that specific body part is covered in eczema.