CKD Stage Calculator

mL/min/1.73m²
Health Updated 14 Jun 2026

CKD Stage Calculator is a health and wellness calculator that helps you calculate your chronic kidney disease (CKD) stage from eGFR and albuminuria using KDIGO classification. The formula used is: KDIGO classification combines GFR category (G1–G5) with albuminuria category (A1–A3). Enter values using the units shown next to each input field (e.g. kg, cm, years).

Rates and fees change frequently. Always confirm the current figures with the official authority before relying on this result.
  • Educational staging aid. Diagnosis requires repeat testing and physician review.

Formula

KDIGO classification combines GFR category (G1–G5) with albuminuria category (A1–A3)
  • CKD Stage Calculator gives you a fast estimate using your inputs and updates instantly when you change any value.
  • Formula: KDIGO classification combines GFR category (G1–G5) with albuminuria category (A1–A3)
  • Input definitions: • eGFR: the numeric egfr used in the calculation
  • Enter values using the units shown next to each input field (e.g. kg, cm, years).
  • This calculator uses widely accepted health formulas and returns screening estimates only. It does not replace a diagnosis from a qualified healthcare professional.
  • Compare your result with published reference ranges. Values outside the normal range warrant a conversation with your doctor.
  • Practical tip: test a low, medium, and high scenario to understand sensitivity before making decisions.

Example Calculation

Inputs
  • eGFR: 75 mL/min/1.73m²

Suppose you enter: eGFR = 75. The calculator applies the formula (KDIGO classification combines GFR category (G1–G5) with albuminuria category (A1–A3)) and shows all output values below. Change any input field to immediately see how the result changes.

Frequently asked questions

What is the CKD Stage?
The CKD Stage Calculator is a health and wellness calculator that helps you calculate your chronic kidney disease (CKD) stage from eGFR and albuminuria using KDIGO classification. Enter values using the units shown next to each input field (e.g. kg, cm, years).
When should I use this calculator?
Use this calculator whenever you need a quick, accurate result for your chronic kidney disease (CKD) stage from eGFR and albuminuria using KDIGO classification without working through the arithmetic manually.
What units should I enter?
Enter values using the units shown next to each input field (e.g. kg, cm, years).
How accurate are the results?
This calculator uses widely accepted health formulas and returns screening estimates only. It does not replace a diagnosis from a qualified healthcare professional.
How do I interpret the result?
Compare your result with published reference ranges. Values outside the normal range warrant a conversation with your doctor.
How can I verify the calculation manually?
Use the displayed formula and work through the numbers step by step. If your manual result differs slightly, check rounding and unit conversions first.
Can I use this for planning and budgeting?
Yes. Run best-case, expected, and worst-case inputs to compare outcomes and make safer planning decisions.

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eGFR Calculator (CKD-EPI 2021) eGFR Calculator (CKD-EPI 2021) is a health and wellness calculator that helps you calculate egfr calculator (ckd-epi 2021) values from your input data. The formula used is: CKD-EPI 2021: 142 × min(Scr/κ,1)^α × max(Scr/κ,1)^−1.2 × 0.9938^age × (1.012 if female). Enter values using the units shown next to each input field (e.g. kg, cm, years). Urine Albumin-to-Creatinine Ratio Calculator The Urine Albumin-to-Creatinine Ratio (UACR) Calculator divides urine albumin by urine creatinine to give a mg/g ratio that screens for kidney damage. It also reports the albuminuria category (A1, A2 or A3). Creatinine Clearance (Cockcroft-Gault) Estimate creatinine clearance (CrCl) and kidney function using the Cockcroft-Gault formula.