MELD Score Calculator (MELD-Na)

Calculate the MELD and MELD-Na scores that rank liver transplant priority, from bilirubin, INR, creatinine and sodium. Example: bilirubin 2.0, INR 1.5, creatinine 1.0 and sodium 135 give a MELD of 14 and MELD-Na of 16.

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Bilirubin (mg/dL)

INR

Creatinine (mg/dL)

Sodium (mEq/L)

Dialysis twice or more in the past week

How to use the MELD Score Calculator (MELD-Na)

Enter the values in the fields.
Press Calculate to see the result with the steps shown.

Formula and method

MELD = 3.78 x ln(bilirubin) + 11.2 x ln(INR) + 9.57 x ln(creatinine) + 6.43. MELD-Na = MELD + 1.32 x (137 – Na) – 0.033 x MELD x (137 – Na) when MELD is above 11.

MELD-Na and 3-month mortality

MELD-Na	3-month mortality (approx.)
Below 10	1.9%
10 to 19	6.0%
20 to 29	19.6%
30 to 39	52.6%
40	71.3%

What the score is used for

MELD ranks adults with end-stage liver disease for transplant allocation. Higher scores mean greater short-term mortality risk without transplant.

Rules applied

Values under 1 are raised to 1, creatinine is capped at 4, dialysis sets creatinine to 4, and sodium is bounded to 125 to 137.

MELD versus MELD 3.0

MELD 3.0 adds sex and albumin and was introduced for US allocation in 2023. This calculator is for education and is not medical advice. Decisions about testing and treatment belong with a qualified clinician.

Frequently asked questions

What is a MELD score?

A number from 6 to 40 estimating short-term mortality in chronic liver disease.

What is a good MELD score?

Lower is better; below 10 is low risk.

What is MELD-Na?

MELD adjusted for low sodium.

What MELD score qualifies for transplant?

Usually evaluated at 15 or higher, but the transplant center decides.

Does MELD 3.0 differ?

Yes, it adds sex and albumin.

How often is it recalculated?

Frequently while on the list.

Sources

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