Albumin Creatinine Ratio Calculator
Assess kidney health instantly with our professional-grade ACR calculator. Detect early signs of kidney damage through albumin-to-creatinine ratio analysis with step-by-step explanations and visual charts.
Interactive ACR Calculator
Calculate Albumin Creatinine Ratio instantly with professional analysis. Essential tool for detecting albuminuria and assessing kidney function. Learn more from authoritative sources like the National Kidney Foundation.
ACR Formula
ACR Definition
The Albumin Creatinine Ratio is calculated by dividing albumin concentration by creatinine concentration:
Interpretation Guide
| Category | ACR (mg/g) | Interpretation |
|---|---|---|
| A1 | < 30 | Normal to mildly increased |
| A2 | 30 – 300 | Moderately increased (microalbuminuria) |
| A3 | > 300 | Severely increased (macroalbuminuria) |
Regular monitoring is recommended for at-risk individuals including diabetics and those with hypertension.
How to Use the ACR Calculator
Simple steps for accurate kidney health assessment
Enter Albumin Value
Input albumin concentration in mg from your urine test results
Enter Creatinine Value
Input creatinine concentration in g from the same urine sample
Get Instant Analysis
View your ACR with medical interpretation and visual charts
Frequently Asked Questions
The ACR is a measure of the amount of albumin (a protein) in urine relative to creatinine. It is used to detect early signs of kidney damage, especially in people with diabetes or high blood pressure. Learn more about albuminuria from the National Kidney Foundation.
An ACR above 30 mg/g indicates increased albumin in the urine (albuminuria), which may suggest kidney damage. ACR of 30-300 mg/g is moderately increased (A2), and above 300 mg/g is severely increased (A3).
People at risk of kidney disease, including those with diabetes, high blood pressure, heart disease, or a family history of kidney disease, should monitor their ACR regularly. See Mayo Clinic’s recommendations for microalbumin testing.
To reduce albuminuria, manage underlying conditions like diabetes and high blood pressure through medication, diet, and exercise. Consult a healthcare provider for tailored advice.
The ACR measures albumin relative to creatinine in urine to assess kidney damage, while the BUN Creatinine Ratio measures blood urea nitrogen relative to creatinine in blood to evaluate kidney function and hydration status.
No questions found
Try searching with different keywords or browse all questions above.