Free · Hematology calculators 🆎

Serum Protein A/G Ratio

Calculate serum protein a/g ratio with preserved observation controls, units and local arithmetic.

  • Formula & worked example
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Calculator inputs

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How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Use the result with context

Health results are educational estimates, not a diagnosis or treatment recommendation. A qualified clinician can interpret measurements in the context of your health.

Formula and method

The worked example gives globulin = 3, ratio = 1.333333333333333333333333333333333333333333333333333333333333333.

Globulin = total protein − albumin; A/G = albumin ÷ globulin.

Worked example

Enter these known values and leave the other values blank.

Albumin
4 g/dL
Total protein
7 g/dL
Globulin
3 g/dL
A/G ratio
1.3333

Assumptions and limitations

  • Use albumin and total protein concentrations from the same specimen. This source model accepts positive concentrations, restricts albumin to 15 g/dL and uses illustrative A/G cutoffs of 1.2 and 2.2. Reference intervals vary by laboratory; these cutoffs do not establish a diagnosis.
  • Use measured or clinician-assessed inputs. This arithmetic does not make a diagnosis or recommend treatment. Supported editable inverses are mathematical relationships, not inferred clinical observations.

Common questions

What does this result mean?

Use albumin and total protein concentrations from the same specimen. This source model accepts positive concentrations, restricts albumin to 15 g/dL and uses illustrative A/G cutoffs of 1.2 and 2.2. Reference intervals vary by laboratory; these cutoffs do not establish a diagnosis.

Does this tool diagnose a condition?

No. It evaluates the stated observations or laboratory relationship; assessment and management require the full clinical context.

References

The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.

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