Chronic Kidney Disease Stage
eGFR estimates how much blood the kidneys filter each minute, scaled to body size. Above 90 is G1 and 60–89 is G2; a value under 60 sustained for more than three months is what defines chronic kidney disease.
Your numbers
Result
2
Left
72%
What it means
An eGFR of 60 or more means function is preserved; without protein in the urine, routine checks suffice.
Formula
Result = stage(eGFR) → G1 … G5
G1 and G2 count as disease only alongside other evidence of kidney damage, such as protein in the urine. The number alone does not settle it.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| eGFREstimated millilitres filtered per minute; 90 or above is normal. | 72 | 0 ~ 150 |
Step by step
Quick reference table
Results when only eGFR changes and everything else stays put.
| eGFR | Result | Left (%) |
|---|---|---|
| 36 | 3 | 36 |
| 54 | 3 | 54 |
| 72 | 2 | 72 |
| 108 | 1 | 100 |
| 144 | 1 | 100 |
What each result means
| Result | At default values |
|---|---|
| ResultWhat the formula gives back — the answer this page is for. | 2 |
| Left (%) | 72 |
Common mistakes
G1 and G2 count as disease only alongside other evidence of kidney damage, such as protein in the urine. The number alone does not settle it.
Glossary
- eGFR
- Estimated millilitres filtered per minute; 90 or above is normal.
- Result
- What the formula gives back — the answer this page is for.
Frequently asked questions
Q. How is Chronic Kidney Disease Stage calculated?
Result = stage(eGFR) → G1 … G5 — eGFR estimates how much blood the kidneys filter each minute, scaled to body size. Above 90 is G1 and 60–89 is G2; a value under 60 sustained for more than three months is what defines chronic kidney disease.
Q. Can you walk through an example?
With eGFR 72, the answer is Result 2.
Q. What do I need to enter?
Enter eGFR. The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only eGFR moves the answer to eGFR 36 → Result 3 and eGFR 144 → Result 1. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
G1 and G2 count as disease only alongside other evidence of kidney damage, such as protein in the urine. The number alone does not settle it.
Related calculators
These calculators help you understand health figures; they do not replace diagnosis or prescription. See a clinician if you have symptoms.