eGFR Calculator

Use this calculator to calculate egfr using a clear formula and simple inputs.

Calculator

Reset

Result

Answer will appear here

Enter the values above and press Calculate to see the answer, step-by-step solution, and formula used.

How the result is calculated

eGFR (CKD-EPI 2021) from creatinine, age, and sex

Explanation

What this calculator does

eGFR Calculator helps you calculate the result using clear inputs, a formula, and practical examples.

This calculator is for general information only and is not medical advice or a diagnosis.

How LearnLinx Calculates This Result

Formula

eGFR (CKD-EPI 2021) from creatinine, age, and sex

Enter your values and press Calculate to see each computation step with your numbers plugged into this formula.

Example

Enter your values, calculate the result, and review the formula used for the answer.

When to use it

Use it when you need a quick result for study, planning, documentation, or checking a manual calculation.

Common mistakes

  • Entering µmol/L while the unit selector is set to mg/dL.
  • Using pediatric ages with an adult CKD-EPI equation.
  • Treating eGFR alone as a complete CKD diagnosis.

Frequently asked questions

Which equation?

CKD-EPI 2021 creatinine equation (no race coefficient).

Adults only?

This tool expects adult ages; pediatric equations differ.

What formula does the eGFR Calculator use?

It uses: eGFR (CKD-EPI 2021) from creatinine, age, and sex. The result page also shows a step-by-step breakdown of how your answer was calculated.

Is the eGFR Calculator free to use?

Yes. All LearnLinx calculators are completely free with no signup required. Signing in is optional and only adds a 60-day history of your calculations.

Is this medical advice?

No. This calculator provides general information only and is not medical advice or a diagnosis. Consult a qualified health professional for personal guidance.