Albumin Creatinine Ratio Calculator
Calculate ACR to detect and monitor kidney disease through albuminuria assessment
Calculate Albumin Creatinine Ratio
Albumin concentration in urine sample
Creatinine concentration in urine sample
ACR Results
Enter albumin and creatinine values to calculate ACR
Example Calculation
Patient Example
Patient: 63-year-old with diabetes
Urine albumin: 8 mg/dL
Urine creatinine: 110 mg/dL = 0.11 g/dL
Calculation
ACR = Albumin ÷ Creatinine
ACR = 8 mg/dL ÷ 0.11 g/dL
ACR = 72.7 mg/g
Result: Category A2 (Moderately increased albuminuria)
CKD Classification
A1: Normal
< 30 mg/g
Normal to mildly increased
A2: Moderate
30-300 mg/g
Moderately increased
A3: Severe
> 300 mg/g
Severely increased
Risk Factors
Diabetes mellitus
High blood pressure
Heart disease
Family history of kidney disease
Age over 60 years
Sample Collection
Use first morning urine sample
Clean genital area thoroughly
Collect midstream urine
Deliver to lab promptly
Medical Disclaimer
This calculator is for educational purposes only and should not replace professional medical advice. ACR results should always be interpreted by qualified healthcare professionals in the context of complete clinical assessment.
Important: Elevated ACR results require medical evaluation. Do not delay seeking professional medical care based on these calculations. This tool does not diagnose kidney disease or provide treatment recommendations.
Understanding Albumin Creatinine Ratio
What is ACR?
The albumin-to-creatinine ratio (ACR) is a urine test that measures the amount of albumin (a protein) relative to creatinine in your urine. It's used to detect and monitor kidney disease, particularly in people with diabetes or high blood pressure.
Why is it Important?
- •Early detection of kidney damage
- •Monitor progression of chronic kidney disease
- •Assess cardiovascular risk
- •Guide treatment decisions
Clinical Significance
Normal Kidney Function
Healthy kidneys filter waste but keep important proteins like albumin in the blood. Normal ACR is typically less than 30 mg/g.
Albuminuria
When kidneys are damaged, albumin leaks into urine (albuminuria). This is often the first sign of kidney disease, occurring years before other symptoms appear.
Testing Frequency
- • Annual screening for high-risk patients
- • More frequent monitoring if ACR is elevated
- • Part of routine diabetes management