GFR Calculator

Get a quick gfr calculator estimate from the values you enter, with a simple explanation of the calculation.

On this page:

The gfr calculator gives a quick estimate from the measurements or values you enter. It is useful for general planning and comparison, but the result should not replace advice from a qualified professional.

How it works

Formula: eGFR formulas use age, sex and serum creatinine; the exact equation depends on the selected clinical formula.

This is a general estimate, not medical advice. For important health decisions, review the result with a qualified professional.

Frequently Asked Questions FAQ

What does the GFR Calculator calculate?
The GFR Calculator provides an estimate based on the information you enter. It is intended to make a common calculation easier to check.
How is the result calculated?
The result is based on the method used by the calculator. The formula or method shown on this page is: eGFR formulas use age, sex and serum creatinine; the exact equation depends on the selected clinical formula.
What information do I need to enter?
Enter the requested measurements or personal values carefully and use the units shown by the calculator.
Can I use the result as medical advice?
No. The result is general information and should not replace advice, diagnosis, or treatment from a qualified health professional.
Why might my result differ from another calculator?
Different calculators may use different formulas, reference methods, units, or rounding rules. Compare the method as well as the final number.
How can I get a more reliable result?
Use accurate measurements, select the correct units, and review the result in context. For important health decisions, discuss it with a qualified professional.

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