Total protein g/dL → g/L

Convert total protein from g/dL to g/L

Sources last checked: 2026-11-03

Total protein g/dL → g/L

Convert total protein from g/dL to g/L

Total protein (g/dL)

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Converts units only; reference ranges depend on the laboratory, the assay and the patient.

Source: BIPM. The International System of Units (SI), 9th edition, 2019 — Table 8 (non-SI units accepted for use with the SI, incl. litre) and the definition of the kelvin and degree Celsius.Open

What is the Total protein g/dL → g/L?

Serum total protein is given in g/dL in the USA and Turkey and in g/L in the UK, Scandinavia and many continental European laboratories; German laboratories use both. The factor is exactly 10, because 1 dL is 0.1 L. Total protein comprises albumin and the globulin fractions.

When to use it

Comparing a g/dL result with European reports or SI-based literature
Calculating globulins (total protein minus albumin) when the two were reported in different units
Reading serum protein electrophoresis reports that give the fractions in g/L

When not to use it

CSF or urine protein, which are measured with different methods and are not interpreted on the serum scale
Urine protein-to-creatinine ratios

How it is calculated

Total protein (g/L) = total protein (g/dL) × 10

Clinical pearls and limitations

Converts units only; reference ranges depend on the laboratory, the assay and the patient.
g/L = g/dL × 10; whole numbers in g/L are sufficient.
Globulins are usually calculated rather than measured: total protein minus albumin, both in the same unit.
Plasma still contains fibrinogen and gives a slightly higher total protein than serum; prolonged tourniquet time and upright posture also raise the value.
Reference intervals depend on the laboratory, method and age.

Frequently asked questions

How do I convert total protein from g/dL to g/L?

Multiply by 10. Example: 6.8 g/dL = 68 g/L; 5.9 g/dL = 59 g/L.

How do I calculate the globulin fraction?

Subtract albumin from total protein, with both in the same unit. With total protein 68 g/L and albumin 41 g/L, globulins are 27 g/L (2.7 g/dL).

Is total protein the same as albumin?

No. Albumin is the largest single fraction, but total protein also contains immunoglobulins and other globulins. A high total protein with unremarkable albumin, for instance, points attention to the globulins.

Evidence and guidelines

Primary source: BIPM. The International System of Units (SI), 9th edition, 2019 — Table 8 (non-SI units accepted for use with the SI, incl. litre) and the definition of the kelvin and degree Celsius.

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For healthcare professionals and medical students. These tools support, and do not replace, clinical judgement. Always check results against the original source and your local protocols.