GFR Calculator · Practical guide
eGFR for Creatinine of 1.5 mg/dL
A creatinine of 1.5 usually puts eGFR somewhere between 35 and 60, depending heavily on age and gender.
At a glance
The Short Answer
A serum creatinine of 1.5 mg/dL is above the typical reference range and points to reduced kidney function. But the eGFR it produces depends on age and gender: the same 1.5 creatinine can mean an eGFR of about 38 for a 60-year-old woman or about 50 for a 60-year-old man. Enter your own details above for your exact estimate.
Interactive tool
GFR Calculator
Enter your own values, then compare the result with the examples below.
Results
Worked Examples (CKD-EPI 2021)
| Profile | eGFR (CKD-EPI) | eGFR (MDRD) | CKD Stage |
|---|---|---|---|
| Female, 60, creatinine 1.5 | 37.6 | 35.4 | G3b |
| Male, 60, creatinine 1.5 | 49.9 | 47.7 | G3a |
Men produce more creatinine from greater muscle mass, so the equations return a higher eGFR for the same creatinine value.
How Age Shifts the Result
Age matters as much as gender. For a woman with creatinine 1.5, eGFR is roughly 47 at age 40 but only about 38 at 60 and under 33 at 75. That is why creatinine alone cannot tell you kidney function — the number must always be interpreted through an eGFR equation.
What to Do with This Result
Stage G3a and G3b results call for follow-up: repeat testing to confirm the value persists, urine albumin screening, and blood pressure checks. Many people stabilize at stage 3 for years with good management. This calculator is informational, not a diagnosis — bring the numbers to your doctor.
Frequently Asked Questions
Is a creatinine of 1.5 dangerous?
It indicates reduced kidney function, typically stage G3, but it is not an emergency by itself. Your doctor will confirm the trend over time and check for causes before deciding on treatment.
What is a normal creatinine level?
Typical reference ranges are about 0.6-1.2 mg/dL for men and 0.5-1.1 mg/dL for women, though labs vary. A value of 1.5 is above the usual range for both.
Why does my eGFR differ between CKD-EPI and MDRD?
The two equations were derived from different patient populations. They usually agree within a few points; CKD-EPI 2021 is the current preferred standard, especially above an eGFR of 60.
Can dehydration raise my creatinine?
Yes. Dehydration, heavy exercise, creatine supplements, and some medications can temporarily elevate creatinine and lower your calculated eGFR without true kidney damage.