Skip to calculator

CLINICAL TOOL · OPTN MELD 3.0 · ESPEN 2020 · ACG 2025 · INASL 2024

MELD Score
Calculator.

All three formula generations — Original MELD, MELD-Na & MELD 3.0 — with validated 90-day mortality bands and a complete 4-level Medical Nutrition Therapy protocol.

MELD 3.0 · OPTN July 2023
Validated 90-Day Mortality
4-Level MNT Protocol
ESPEN · EASL · ACG · INASL

Enter Lab Values

Fields marked required · Optional fields unlock MELD-Na & MELD 3.0

All calculations run in your browser — no patient data is stored or transmitted.
Floored at 1.0 · Capped at 4.0 (MELD) / 3.0 (MELD 3.0)
Total bilirubin · Floored at 1.0
International Normalised Ratio · Floored at 1.0
Serum sodium · Enables MELD-Na & MELD 3.0 · Clamped 125–137
Serum albumin · Required for MELD 3.0 · Floor 1.5 g/dL
Female sex adds +1.33 to MELD 3.0 (OPTN 2023 equity adjustment)
Used for nutrition targets · Ascites correction applied below
Subtracts fluid weight for accurate nutrition dosing (ESPEN 2020)

MELD 3.0 (OPTN July 2023) · Original MELD · MELD-Na · ESPEN 2020 · ACG 2025 · INASL 2024

PRIMARY SCORE (MELD 3.0)
—
MELD 3.0 (active standard)
Awaiting input

— MELD
— MELD-Na
— MELD 3.0

WHAT THIS CALCULATES

All 3 MELD VersionsOriginal · MELD-Na · MELD 3.0
90-Day Mortality RiskValidated severity bands
4-Level MNT ProtocolEnergy · Protein · Meal pattern
BCAA / ONS / EN FlagsTriggered by score + nutrition level
INASL India ContextTransplant & nutrition guidelines
PDF Clinical ReportShare with patient or team

SPECIALIST CARE

Clinical Dietitian
Liver MNT Consultation

Our hepatology-trained dietitian will build a personalised nutrition plan integrating your MELD score, comorbidities, and transplant status.

Book Consultation →

GUIDELINES USED

OPTN July 2023MELD 3.0 adoption for liver allocation
ESPEN 2020Clinical nutrition in liver disease
ACG 2025Malnutrition & nutrition in cirrhosis
EASL 2018/2024Nutrition in CLD · Decompensated cirrhosis
INASL 2024India liver transplantation guidance

FORMULA VERSIONS

Original MELDCr · Bili · INR only · Historical standard
MELD-NaAdds sodium · Pre-2023 UNOS standard
MELD 3.0Adds albumin + sex equity · Active OPTN standard
C-statistic (90-day)0.85 → 0.862 → 0.869 across versions

⚕️ Clinical Disclaimer: This calculator is for educational and clinical support purposes only. MELD scores must be interpreted alongside clinical examination, imaging, patient history, and specialist judgment. Organ allocation decisions require formal registration with transplant authorities (NOTTO in India, OPTN/UNOS in the USA). Patients meeting Status 1A criteria (acute liver failure, expected survival <7 days without transplant) bypass MELD scoring and should be listed immediately. This tool does not replace the decision of a qualified hepatologist or transplant physician. For Indian transplant centres, refer to INASL 2024 guidance and NOTTO protocols.