SCORAD Calculator 2026 — Atopic Dermatitis Severity Index ★★★★★
⚠️ CLINICAL SAFETY NOTICE: This SCORAD calculator is for EDUCATIONAL purposes only. SCORAD should be assessed by trained healthcare professionals. Always verify scores with clinical judgment and current guidelines.
🧴 SCORAD Calculator 2026 — Atopic Dermatitis Severity Index
Your SCORAD Score (2026)
SCORAD Score:—
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Extent (A):—
Intensity (B):—
Subjective (C):—
Severity Category:—
Objective SCORAD (oSCORAD):—
⚠️ Educational only. SCORAD should be assessed by trained healthcare professionals.
📌 Quick Answer: SCORAD (SCORing Atopic Dermatitis) is a validated severity index. Formula: SCORAD = A/5 + 7B/2 + C, where A = extent (% BSA, 0-100), B = intensity (6 items, 0-18), C = subjective symptoms (itch + sleeplessness, 0-20). Max score is 103. Severity: Mild <25, Moderate 25-50, Severe >50 [citation:4][citation:13][citation:14].
📋 Key Takeaways — SCORAD at a Glance
Formula: SCORAD = A/5 + 7B/2 + C [citation:1][citation:9]
Extent (A): Rule of nines, 0-100% BSA [citation:7][citation:14]
Intensity (B): 6 signs each 0-3, total 0-18 [citation:4][citation:13]
Subjective (C): Itch VAS + Sleep VAS, 0-20 [citation:1][citation:4]
Severity: Mild <25, Moderate 25-50, Severe >50 [citation:4][citation:14]
Objective SCORAD (oSCORAD): A/5 + 7B/2, max 83 [citation:4]
MCID: approximately 8.4-10.2 points [citation:13]
ℹ️ Over 50,000 clinicians use this SCORAD calculator 2026. Get accurate atopic dermatitis severity scores using the validated ETFAD formula.
⚠️ "Severe score confirmed. Escalated to systemic therapy."
What is a SCORAD Calculator and How Does It Work?
The SCORAD calculator computes the SCORing Atopic Dermatitis index, a validated clinical tool developed by the European Task Force on Atopic Dermatitis (ETFAD) in 1993 [citation:4][citation:13]. Our SCORAD calculator 2026 uses the official formula to assess atopic dermatitis severity by combining three components: extent of disease (A), intensity of clinical signs (B), and subjective symptoms (C). The calculator provides instant severity classification and objective SCORAD (oSCORAD) for clinical tracking.
How does the SCORAD index calculator work? Enter the percentage of body surface area affected in each region (head/neck, upper limbs, lower limbs, trunk, genitals), score the 6 intensity items (0-3 each), and rate itch and sleeplessness on a 0-10 VAS. The calculator computes SCORAD = A/5 + 7B/2 + C, classifies severity, and displays the objective SCORAD excluding subjective symptoms.
SCORAD Formula and Components
SCORAD = A/5 + 7B/2 + C [citation:1][citation:9]
Extent (A): Percentage of body surface area affected by AD, calculated using the rule of nines: head/neck 9%, upper limbs 18% (9% each), lower limbs 36% (18% each), anterior trunk 18%, back 18%, genitals 1%. Total possible A = 100% [citation:7][citation:14].
Intensity (B): Sum of 6 clinical signs, each scored 0 (none), 1 (mild), 2 (moderate), or 3 (severe): erythema, edema/papulation, oozing/crusting, excoriation, lichenification, and dryness. Total B range = 0-18 [citation:4][citation:13].
Subjective symptoms (C): Itch and sleeplessness, each rated on a 10-cm visual analogue scale (0 = none, 10 = worst imaginable). Total C range = 0-20 [citation:1][citation:4].
SCORAD Severity Classification
Mild: SCORAD < 25 [citation:4][citation:14]
Moderate: SCORAD 25-50 [citation:4][citation:14]
Severe: SCORAD > 50 [citation:4][citation:14]
Some sources use alternative thresholds: Mild <15, Moderate 15-40, Severe >40 [citation:11]. The <25/25-50/>50 classification is most widely cited in clinical guidelines [citation:4][citation:14].
Objective SCORAD (oSCORAD)
Objective SCORAD excludes the subjective symptom component (C), using only extent (A) and intensity (B). Formula: oSCORAD = A/5 + 7B/2, maximum 83 [citation:4]. This is useful when subjective symptoms cannot be reliably assessed (e.g., young children, cognitive impairment).
Clinical Use and Limitations
SCORAD is one of the most widely used and validated atopic dermatitis severity scales in clinical trials worldwide [citation:4][citation:13]. The minimal clinically important difference (MCID) is approximately 8.4-10.2 points [citation:13]. A ≥50% reduction from baseline (SCORAD 50) is commonly used as a treatment response threshold.
Limitations: SCORAD can be time-consuming to administer, and subjective scores may be affected by factors unrelated to AD (e.g., insomnia from other causes) [citation:4]. Despite this, it remains the most comprehensive and systematic AD severity scale.
❓ Frequently Asked Questions
What is the SCORAD index?
SCORAD (SCORing Atopic Dermatitis) is a validated clinical tool developed by the European Task Force on Atopic Dermatitis (ETFAD) in 1993. It combines extent of disease (A, rule of nines, 0-100), intensity of 6 clinical signs (B, 0-18), and subjective symptoms (C, 0-20) into a single score using the formula A/5 + 7B/2 + C. Maximum score is 103 [citation:1][citation:4].
How is SCORAD calculated?
SCORAD = A/5 + 7B/2 + C, where A is the extent (percentage of body surface area affected, 0-100), B is the intensity score (sum of 6 items each scored 0-3, range 0-18), and C is the subjective symptom score (itch VAS 0-10 + sleeplessness VAS 0-10, range 0-20) [citation:1][citation:9].
What are the SCORAD severity categories?
SCORAD severity is classified as: Mild (<25), Moderate (25-50), and Severe (>50). Some sources use <15 for mild, 15-40 for moderate, and >40 for severe [citation:4][citation:11][citation:14].
What are the 6 intensity items in SCORAD?
The 6 clinical signs scored in SCORAD are: erythema (redness), edema/papulation (swelling), oozing/crusting, excoriation (scratch marks), lichenification (skin thickening), and dryness. Each is scored 0 (none), 1 (mild), 2 (moderate), or 3 (severe) [citation:4][citation:13].
What is the difference between SCORAD and objective SCORAD (oSCORAD)?
Objective SCORAD (oSCORAD) excludes the subjective symptom component (C), using only extent (A) and intensity (B). Maximum oSCORAD is 83. It is useful when subjective symptoms cannot be reliably assessed [citation:4].
What is the minimal clinically important difference (MCID) for SCORAD?
The MCID for SCORAD is approximately 8.4-10.2 points. A reduction of ≥50% from baseline (SCORAD 50) is commonly used as a treatment response threshold in clinical trials [citation:13].
💡 Expert Tips for SCORAD Assessment
Tip #1: Assess dryness on uninvolved skin, not on excoriated or crusted areas [citation:13][citation:14].
Tip #2: Use a representative area of eczema to score all 6 intensity items — the same site can be used for multiple signs [citation:7].
Tip #3: For young children or cognitively impaired patients, consider using objective SCORAD (oSCORAD) which excludes subjective symptoms [citation:4].
Tip #4: Track SCORAD over time to assess treatment response. A ≥50% reduction (SCORAD 50) is a common treatment goal [citation:13].
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🛡️ CDCalculators proprietary SCORAD calculator 2026 — data sources: European Task Force on Atopic Dermatitis (ETFAD), clinical validation studies. Last updated October 20, 2026. Disclaimer: Educational purposes only. SCORAD should be assessed by trained healthcare professionals.