BUN-to-Creatinine Ratio Calculator
Helps tell dehydration from kidney problems.
Your result
A ratio of 10–20 is typical.
Medical disclaimer: This tool is for education and is not medical advice. Read more.
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Frequently asked questions
What does the BUN-to-Creatinine Ratio Calculator do?
Helps tell dehydration from kidney problems. Enter your values and the result and chart update instantly.
How accurate is it?
It uses published, widely used formulas. Results are estimates for education and planning, not a diagnosis. Talk to a qualified clinician about decisions affecting your health.
Is my information stored or shared?
No. All calculations run in your browser and nothing you type is sent to a server or saved.
What can I search to find this tool?
People find it by searching for: bun high; dehydration blood test; kidney labs ratio.