Kidney Failure Risk Calculator

Written by Great Medico

Updated September 24, 2026 •2 min read

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A lab ratio or imaging score can be useful only if you know what it represents. Kidney Failure Risk Calculator combines the displayed kidney/urology measurements into one focused estimate.

What this calculator does

Kidney Failure Risk Calculator uses Sex, Age, Albumin-to-creatinine ratio, eGFR, Albumin, Bicarbonate, Calcium, and Phosphorus to calculate the plugin’s approximate 5-year kidney-failure probability. It is built around the exact fields displayed in this plugin rather than a generic version of the topic. Where supported, it also shows Total KFRE points so the primary result is easier to place in context. Kidney calculations often depend on paired laboratory samples, stable physiology, and the population in which the equation was validated. Acute changes in kidney function or nonstandard sampling can make an apparently precise number unreliable.

How to use it

Complete the requested fields, including Sex, Age, Albumin-to-creatinine ratio, eGFR, Albumin, and Bicarbonate, then finish the remaining items shown in the calculator. Confirm that each yes/no, category, date, or score option is applied exactly as labeled. For paired blood, urine, or dialysis measurements, use samples and treatment data from the same collection or clinical episode when the formula requires it.

How the calculation works

The calculator uses the plugin’s eight-variable point table based on age, sex, urine albumin-to-creatinine ratio, eGFR, serum albumin, bicarbonate, calcium, and phosphorus. Each value is converted into a point contribution; the total is then mapped to the built-in table of approximate 5-year kidney-failure probabilities.

Example

Using the sample values prefilled in this calculator, the primary result is 26.4 % (5-year kidney failure probability) and Total KFRE points is -21. This worked example shows how the plugin’s own default inputs flow through the implemented method; replace them with the correct patient, laboratory, imaging, or personal values before interpreting a result.

How to interpret the result

The percentage is the plugin’s approximate 5-year kidney-failure probability for the entered CKD variables. It is most useful for structured risk discussion and planning when applied to an appropriate CKD population, not as a prediction that dialysis will occur on a specific date.

Limitations and notes

KFRE is intended for people with established CKD in appropriate eGFR ranges and should not be applied casually to acute kidney injury or people outside the validated population. This plugin uses a point-table implementation rather than exposing every coefficient of a current published KFRE equation, so high-stakes decisions should be confirmed with a validated clinical tool.