How to Use Albumin/Globulin Ratio Calculator
The Albumin/Globulin Ratio Calculator divides serum albumin by serum globulin to produce the A/G ratio. Enter albumin and globulin using matching units, either g/L or g/dL. Because the same unit appears in the numerator and denominator, the final ratio has no unit.
The result area shows the A/G ratio and a common reference range of about 1.0 to 2.5. The calculator also displays the formula and substitution so users can confirm that the same protein units were used. If albumin or globulin is missing or not positive, no ratio is calculated.
The A/G ratio is only one part of a protein panel. A low or high ratio may reflect changes in albumin, globulin, or both. Interpretation can involve liver function, inflammation, kidney loss, immune proteins, nutrition status, hydration, and the reason the test was ordered.
Formula & Theory - Albumin/Globulin Ratio Calculator
The Albumin/Globulin Ratio Calculator uses:
Albumin/globulin ratio = serum albumin / serum globulinFor example:
Albumin = 42 g/L
Globulin = 30 g/L
A/G ratio = 42 / 30 = 1.40If the values are entered in g/dL instead, the same ratio is produced as long as both inputs use g/dL.
Use Cases for Albumin/Globulin Ratio Calculator
The Albumin/Globulin Ratio Calculator is useful for chemistry panel education, nutrition discussions, liver and kidney lab review, and teaching how ratios are built from measured values. It can help users understand whether a change in albumin or globulin is driving the ratio.
Use the result alongside total protein, albumin, globulin, liver tests, kidney tests, inflammatory markers, symptoms, and clinician guidance. The ratio alone is not a diagnosis.