Creatinine mg/dL → µmol/L

Convert serum creatinine from conventional units (mg/dL) to SI (µmol/L)

Sources last checked: 2026-10-13

Creatinine mg/dL → µmol/L

Convert serum creatinine from conventional units (mg/dL) to SI (µmol/L)

Creatinine (mg/dL)

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Converts units only; reference ranges depend on the assay (enzymatic vs Jaffe), age and sex.

Source: AMA Manual of Style, 11th ed. (Oxford Academic) — Units of measure converter, Table 2: Selected laboratory tests and conversion factors.Open

What is the Creatinine mg/dL → µmol/L?

This converter turns creatinine reported in mg/dL — common in Germany, Austria, Turkey and the USA — into the SI unit µmol/L used in UK, Scandinavian and most European guidelines. It multiplies by 88.4, the factor in the AMA Manual of Style SI table, which follows from creatinine’s molar mass of 113.12 g/mol.

When to use it

Applying thresholds from guidelines written in µmol/L (e.g. HAS-BLED’s 200 µmol/L)
Comparing results across European labs
Medical school exams and case reports using SI units

When not to use it

Urine creatinine, which is usually reported in mmol/L
As a stand-alone measure of renal function

How it is calculated

Creatinine (µmol/L) = creatinine (mg/dL) × 88.4

Clinical pearls and limitations

Converts units only; reference ranges depend on the assay (enzymatic vs Jaffe), age and sex.
0.5 mg/dL ≈ 44 µmol/L; 1.0 ≈ 88; 2.0 ≈ 177; 4.0 ≈ 354 µmol/L.
Round µmol/L results to whole numbers — the analytical precision does not support decimals.
A rise of 0.3 mg/dL in 48 h (KDIGO AKI criterion) equals about 26.5 µmol/L.

Frequently asked questions

How do I convert creatinine from mg/dL to µmol/L?

Multiply by 88.4. For example, 1.2 mg/dL × 88.4 = 106 µmol/L.

What is 2 mg/dL creatinine in µmol/L?

About 177 µmol/L.

Is the factor 88.4 or 88.42?

Molar-mass calculation gives 88.40; published tables print 88.4. The difference is irrelevant clinically.

Evidence and guidelines

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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.