Haemoglobin mmol/L → g/dL
Convert haemoglobin from mmol/L to g/dL
Sources last checked: 2026-11-03
Haemoglobin mmol/L → g/dL
Convert haemoglobin from mmol/L to g/dL
Converts units only; reference ranges depend on the laboratory, the assay and the patient.
What is the Haemoglobin mmol/L → g/dL?
This converter turns haemoglobin in mmol/L — the unit used mainly in the Netherlands — into g/dL, used in Germany, Austria, Turkey and the USA. It divides by 0.6206, the AMA Manual of Style factor, which assumes the haem-carrying monomer as the counting unit.
When to use it
- Interpreting a Dutch lab report or discharge letter
- Reading Dutch studies or guidelines while working in a g/dL system
- Checking whether a surprisingly 'low' Hb is only a unit difference
When not to use it
- Results already in g/L (UK, Scandinavia) — divide by 10 instead
- HbA1c values in mmol/mol, which are a different measurement entirely
How it is calculated
Haemoglobin (g/dL) = Hb (mmol/L) ÷ 0.6206
Clinical pearls and limitations
- Converts units only; reference ranges depend on the laboratory, the assay and the patient.
- 1 mmol/L ≈ 1.61 g/dL.
- A Dutch Hb in mmol/L looks alarmingly low to anyone used to g/dL — confirm the unit before reacting to the number.
- Round to one decimal place in g/dL; the conversion adds no real precision.
- Point-of-care devices sold in the Netherlands may display mmol/L; check device settings when values look implausible.
Frequently asked questions
How do I convert haemoglobin from mmol/L to g/dL?
Divide by 0.6206. Example: 8.7 mmol/L ÷ 0.6206 = 14.0 g/dL; 6.0 mmol/L ÷ 0.6206 = 9.7 g/dL.
What is 1 mmol/L haemoglobin in g/dL?
About 1.61 g/dL (1 ÷ 0.6206).
Why does an Hb of 8 look so low?
Because it is probably in mmol/L: 8 mmol/L corresponds to about 12.9 g/dL. Numbers from the two systems must not be compared directly.
Evidence and guidelines
Have a follow-up question?
Medelix answers clinical questions from current guidelines and studies — every statement with its source.
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<p><a href="https://medelix.ai/en/calculators/hemoglobin-mmol-l-to-g-dl">Haemoglobin mmol/L → g/dL calculator by Medelix</a></p>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.