Quantifies severity of psoriasis.
Psoriasis Area and Severity Index (PASI) Calculator
Psoriasis Area and Severity Index (PASI) Calculator
Severity Scores (0-4) & Area Involvement (0-6)
Head/Neck (10% Body Surface)
Head/Neck Score: 0.00
Upper Limbs (20% Body Surface)
Upper Limbs Score: 0.00
Trunk (30% Body Surface)
Trunk Score: 0.00
Lower Limbs (40% Body Surface)
Lower Limbs Score: 0.00
Total PASI Score:
Please select values for all severity and area inputs for all body regions.
Interpretation of PASI Score:- PASI 0-10: Mild psoriasis
- PASI 10-20: Moderate psoriasis
- PASI > 20: Severe psoriasis
Note: PASI is a widely used tool, but its interpretation should always be done in a clinical context.
Specialty Doctor, NHS, UK