FIB-4 Score Calculator
Health & FitnessCalculate the FIB-4 score, a non-invasive index used to estimate the likelihood of advanced liver fibrosis.
FIB-4 Score
FIB-4 score. Educational reference only, not a substitute for clinical judgment.
Interpretation
General interpretation based on published validation studies. Most reliable for adults aged 35-65. 1.45-3.25 - indeterminate range, further testing often recommended
Found this calculator useful?
From Scratch To $10K/Month In 60 Days
This is a proven money making system that takes students by the hand to make at least $10,000 per month, every month. Students get 12 weeks of guided coaching in addition to the "MPS Super Funnel" and tools.
We value your privacy and promise not to sell or misuse your information. Here's our privacy policy.
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Health & Fitness calculators
Frequently Asked Questions
What is FIB-4 used for?
FIB-4 is a widely used non-invasive score that estimates the likelihood of advanced liver fibrosis using routine lab values and age, helping decide which patients may need further liver evaluation.
Why does age matter so much in this formula?
FIB-4 was validated primarily in adults aged 35 to 65. Outside that age range, especially in younger patients, the score can produce more false positives and should be interpreted with extra caution.
How does FIB-4 compare to APRI?
Both are simple non-invasive fibrosis scores using routine labs. FIB-4 additionally incorporates age and is generally considered to have somewhat better diagnostic accuracy in several validation studies, though both are used complementarily.
Is this calculator a substitute for medical advice?
No. This is an educational reference implementation of the standard FIB-4 formula, not a substitute for a physicians clinical assessment.
Spot a mistake? Tell us what's wrong.
Request a calculator. The most-requested ones get built first in our monthly batch.
Request a calculatorWant this calculator on your website?
Embed the FIB-4 Score Calculator on any site — no code needed. Customize colors, remove branding, and track usage.
