Albumin Globulin Ratio Calculator
HealthCalculate the albumin/globulin (A/G) ratio from serum albumin and total protein values. A standard lab reference calculation, not a diagnosis.
Albumin/Globulin Ratio
1.5
Globulin
2.8
What is a A/G Ratio?
The Albumin Globulin Ratio Calculator computes the A/G ratio from serum albumin and total protein values, both commonly reported on standard blood chemistry panels. This is a standard lab reference calculation, not a diagnostic tool.
For related blood test calculations, see the ANC Calculator.
How to use this A/G Ratio calculator
- Enter your serum albumin value in g/dL.
- Enter your total protein value in g/dL.
- Read the Albumin/Globulin Ratio and Globulin results instantly.
- Discuss any specific lab results with a qualified healthcare professional for proper interpretation.
Formula & Methodology
Globulin = Total Protein − Albumin A/G Ratio = Albumin ÷ Globulin Worked example — an albumin of 4.2 g/dL and total protein of 7.0 g/dL: Globulin = 7.0 − 4.2 = 2.8 g/dL A/G Ratio = 4.2 ÷ 2.8 = 1.5
Frequently Asked Questions
The A/G ratio compares the amount of albumin to globulin in the blood, two major categories of serum protein, and is calculated from standard total protein and albumin blood test values.
Globulin is first calculated by subtracting albumin from total protein, and then the A/G ratio is calculated by dividing albumin by that globulin figure.
Albumin is a major protein produced by the liver that helps maintain fluid balance in the blood, while globulins are a broader category of proteins that include antibodies and other functional proteins — together they make up most of total serum protein.
Total protein and albumin are both commonly reported on a standard blood chemistry panel, often as part of a comprehensive metabolic panel or liver function test.
No — this calculator performs the mathematical conversion only. Interpreting what a specific A/G ratio means for your health requires a qualified healthcare professional reviewing your complete lab results and clinical history.
Expressing the relationship as a ratio makes it easier to spot patterns where the balance between the two protein types shifts, even when total protein itself remains within a typical range.
This calculator uses grams per deciliter (g/dL) for both albumin and total protein, the standard unit used in most blood chemistry reporting.
Yes — globulin is typically calculated as the difference between total protein and albumin rather than measured as a single direct test, which is exactly what this calculator does.
Like the [ANC Calculator](/anc-calculator/) and other blood count tools, this calculator performs a standard derived lab calculation from values you already have, rather than measuring anything directly.
This calculator accepts total protein values typically in the range of 6-8 g/dL, matching common reference ranges for healthy adults, though your specific lab's reference range may vary slightly.
Also known as