Fitzpatrick Skin Type Calculator
Classify your skin type (I–VI) based on genetic disposition and sun reaction to determine UV sensitivity, burn risk, and SPF recommendations.
About this calculator
The Fitzpatrick skin type scale, introduced by dermatologist Thomas Fitzpatrick in 1975 to standardize UV dosing for phototherapy patients, originally covered only four skin types; Fitzpatrick extended it to the full six-type scale used today -- adding Types V and VI to represent darker, less UV-sensitive skin -- in a 1988 Archives of Dermatology paper. It classifies skin into six types based on how it responds to ultraviolet exposure, later adopted broadly in dermatology and cosmetic procedures for choosing safe laser, chemical peel, and sun-protection parameters. This calculator uses a self-assessment approach that scores five factors people can report about themselves: genetic disposition (eye, hair, and skin color), how the skin reacts to initial sun exposure (from severe burning to never burning), tanning ability, freckling tendency, and baseline unexposed skin color, each contributing to a total score that maps onto the six Fitzpatrick types. Type I describes skin that always burns and never tans, typically very fair with light eyes; Type VI describes skin that essentially never burns and tans very deeply, typically dark brown to black.
The types in between represent a gradient of decreasing burn susceptibility and increasing natural photoprotection from melanin. This matters clinically because darker Fitzpatrick types are not immune to UV damage or skin cancer -- they carry substantially lower burn risk and lower melanoma risk, but higher risk for certain other conditions and often present with more advanced disease at diagnosis partly due to lower suspicion and later detection. Recommended SPF, minimal erythema dose (MED, the UV energy needed to just produce visible redness), and estimated unprotected burn time in this calculator move together with skin type as general, order-of-magnitude guidance for sun-protection planning and treatment-parameter selection, not as precise personalized dosimetry, which in a clinical phototherapy or laser setting is still determined by direct patient testing rather than a questionnaire score alone.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Fitzpatrick Skin Type
3
Figures current as of 1988. Source: Fitzpatrick TB. The validity and practicality of sun-reactive skin types I through VI. Arch Dermatol. 1988;124(6):869-871.
How to Use This Calculator
- Answer each of the five questions about Genetic Disposition, Reaction to Sun Exposure, Tanning Ability, Freckling Tendency, and Unexposed Skin Color.
- The calculator scores your responses and assigns a Fitzpatrick Skin Type (I-VI).
- Review Burn Risk Level and Recommended SPF for your skin type.
- Enter the current or expected UV Index, then note the Minimal Erythema Dose (MED) estimate and Unprotected Burn Time for sun planning.
- Use this classification when consulting for phototherapy dosing or laser treatment parameters.
What each input means
- Genetic Disposition
- Eye/hair/skin color score: 0 = very fair (blue eyes, red hair), 4 = dark (brown eyes, black hair).
- Reaction to Sun Exposure
- 0 = always burns severely, 1 = usually burns, 2 = sometimes burns, 3 = rarely burns, 4 = never burns.
- Tanning Ability
- 0 = never tans, 1 = minimal tan, 2 = gradual tan, 3 = tans easily, 4 = always deeply tans.
- Freckling Tendency
- 0 = many freckles, 1 = several, 2 = few, 3 = very few, 4 = none.
- Unexposed Skin Color
- 0 = very pale/white, 1 = fair, 2 = medium, 3 = olive/brown, 4 = dark brown/black.
- UV Index
- Current or expected UV index. Used only for the Unprotected Burn Time estimate; higher UV index shortens the estimated burn time.
What each result means
- Fitzpatrick Skin Type
- Skin type I (most sensitive) to VI (least sensitive).
- Total Score
- Sum of all responses (0–20).
- Burn Risk Level
- 1 (low) to 5 (very high).
- Recommended SPF
- Minimum SPF recommendation for daily use (AAD recommends broad-spectrum SPF 30+ for everyone, regardless of skin type).
- MED Estimate
- Minimal erythema dose — an illustrative, order-of-magnitude UV energy estimate to cause redness, not precise clinical dosimetry.
- Unprotected Burn Time
- Approximate minutes to sunburn at the entered UV index without protection. An illustrative estimate, not precise dosimetry.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersGenetic Disposition = 2, Reaction to Sun Exposure = 2, Tanning Ability = 2, Freckling Tendency = 1 = 5 input(s) provided
- Calculate Fitzpatrick Skin Type3 = 3
- Calculate Total ScoreTotal Score9 = 9
- Calculate Burn Risk Level3 = 3
Figures and sources
- Fitzpatrick skin type scale (six-type sun-reactivity classification) (1988) — Fitzpatrick TB. The validity and practicality of sun-reactive skin types I through VI. Arch Dermatol. 1988;124(6):869-871.
Engine last updated . Checked against 2 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
Does a higher Fitzpatrick type mean someone doesn't need sun protection?
No -- higher Fitzpatrick types (V and VI) have substantially lower sunburn risk and lower melanoma risk due to greater natural melanin protection, but they are not immune to UV damage, photoaging, or skin cancer, and darker-skinned patients are often diagnosed with skin cancer at a later, more advanced stage partly because of lower clinical suspicion and delayed detection. Sun protection recommendations scale down with skin type in this calculator, but they do not go to zero at any type.
Why was the Fitzpatrick scale originally created for phototherapy rather than general skincare?
Thomas Fitzpatrick developed the scale in 1975 to standardize how much UV light dose was safe to start with when treating skin conditions like psoriasis with UV phototherapy, since giving the same UV dose to every patient regardless of their burn sensitivity risked either injuring fair-skinned patients or under-treating dark-skinned ones. It was only later adopted more broadly in cosmetic dermatology and general sun- safety guidance, which is why some of its terminology (like minimal erythema dose) still reflects its phototherapy origins.
How is minimal erythema dose (MED) different from a recommended SPF number?
Minimal erythema dose is a measured or estimated amount of UV energy needed to just barely produce visible skin redness on a given person's skin, and it varies by roughly four to five-fold across the Fitzpatrick range in this calculator's estimates, directly reflecting the same photoprotection differences that drive skin type classification. Recommended SPF is a separate, more practical downstream guideline derived from typical burn risk at each skin type, meant for everyday sun-protection product selection rather than the specific dosimetry MED represents.
Can a self-assessment questionnaire really substitute for a dermatologist's evaluation?
A self-assessment like this one is useful for general sun-safety planning and rough SPF guidance, but clinical settings that need precise UV dosing -- phototherapy for a skin condition, laser treatment parameters, or chemical peel selection -- typically still involve direct evaluation by a dermatologist and sometimes actual test-dose UV exposure, because self-reported tanning and burning history can be imprecise and doesn't always match how a person's skin actually responds under controlled conditions.
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