Select Page

Allocation calculators

What happened in public comment? See what the community had to say. View comments

MELD calculator

MELD calculator

For ages 12 and older

The Model for End-Stage Liver Disease (MELD) calculator provides a ‘score’ (number) based on how urgently someone needs a liver transplant in the next three months.

MELD calculator Watch video

PELD calculator

PELD calculator

For ages 11 and under

The Pediatric End-Stage Liver Disease (PELD) scoring system is similar to MELD, but uses some different factors to recognize the specific needs of children.

PELD calculator Watch video

CPRA calculator

CPRA calculator

The Calculated Panel Reactive Antibody (CPRA) calculator evaluates candidates for kidney, pancreas and kidney/pancreas transplants, based on the candidate’s unacceptable antigens.

CPRA calculator Watch video

EPTS calculator

EPTS Calculator

An Estimated Post Transplant Survival (EPTS) calculator scores all adult candidates on the kidney waiting list, as part of the new kidney allocation system.

KDPI calculator

KDPI calculator

The Kidney Donor Profile Index (KDPI) calculator summarizes the risk of graft failure after kidney transplant.

purple circle with lung icon over an illustration of a calculator with CAS and sample allocation score

Lung CAS calculator

This is a sample calculator to show how the lung Composite Allocation Score (lung CAS) is established. It uses the same formula that is used for the lung allocation policy that took effect March 9, 2023.

Share This