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Lab Unit Converter

Glucose, cholesterol, creatinine unitsRuns locally · nothing uploaded

Converted
5.55 mmol/L

Formula: mmol/L = mg/dL ÷ 18.016

Hemoglobin A1c

Input unit
NGSP (%)
6.5 %
IFCC (mmol/mol)
48 mmol/mol
Estimated average glucose (eAG)
7.8 mmol/L · 140 mg/dL

Unit conversion only — it does not tell you whether a result is normal. Reference ranges differ between labs; ask your clinician to interpret your results.

Estimates based on general formulas, for information only. Not a substitute for professional medical advice, diagnosis or treatment.

Unit conversion only. It does not tell you whether a result is normal and must not be used to diagnose or adjust medication. Ask your clinician to interpret your results.

Also works as:blood sugar mg/dl to mmol/lcholesterol mmol to mgcreatinine umol to mg/dla1c to mmol/mola1c to average glucose

How it works

When to use it

  • Reading a lab report, paper or meter that uses the other unit system.
  • Switching HbA1c between % (NGSP) and mmol/mol (IFCC).

Formula

mmol/L = mg/dL × 10 ÷ molecular weight

Glucose ÷ 18.016; cholesterol ÷ 38.67; triglycerides ÷ 88.57; calcium × 0.2495.

µmol/L = mg/dL × factor

Creatinine × 88.42; uric acid × 59.48; bilirubin × 17.1.

Urea (mmol/L) = BUN (mg/dL) ÷ 2.801
IFCC (mmol/mol) = (NGSP % − 2.15) × 10.929
eAG (mg/dL) = 28.7 × A1c % − 46.7

Worked example

Given: Fasting glucose 7.0 mmol/L; creatinine 1.2 mg/dL; HbA1c 6.5%

  1. Glucose: 7.0 × 18.016 ≈ 126.1 mg/dL.
  2. Creatinine: 1.2 × 88.42 ≈ 106.1 µmol/L.
  3. HbA1c: (6.5 − 2.15) × 10.929 ≈ 48 mmol/mol; eAG = 28.7 × 6.5 − 46.7 ≈ 140 mg/dL ≈ 7.8 mmol/L.

Result: 126.1 mg/dL, 106.1 µmol/L, 48 mmol/mol.

Reading the result

  • Converting changes only the unit, not the meaning. Compare against the reference range printed in the same unit.
  • Methods and ranges vary between labs, so track trends with results from the same lab.

Limitations

  • The cholesterol factor applies to total, LDL and HDL cholesterol, not triglycerides.
  • eAG comes from the ADAG regression; anemia and hemoglobin variants can break the A1c–glucose relationship. Not for diagnosis or medication decisions.

Sources

  • AMA Manual of Style: SI conversion factors
  • Nathan DM, et al. Translating the A1C assay into estimated average glucose values. Diabetes Care. 2008;31(8):1473–1478.

How to use

  1. 1Choose the test.
  2. 2Enter the value and pick its unit.
  3. 3Read the converted value; HbA1c has its own converter below.

FAQ

How do I convert glucose from mg/dL to mmol/L?

Divide by 18 (18.016 exactly). 100 mg/dL ≈ 5.6 mmol/L and 126 mg/dL ≈ 7.0 mmol/L.

Why do the factors differ between tests?

mg/dL measures mass and mmol/L counts molecules, so each factor depends on the substance's molecular weight.

How do I convert HbA1c % to mmol/mol?

IFCC (mmol/mol) = (NGSP % − 2.15) × 10.929. For example 6.5% ≈ 48 mmol/mol.

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