Haemoglobin g/L → g/dL

Convert haemoglobin from g/L to g/dL

Sources last checked: 2026-11-03

Haemoglobin g/L → g/dL

Convert haemoglobin from g/L to g/dL

Haemoglobin (g/L)

Fill in every field to see the result.

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 Haemoglobin g/L → g/dL?

This converter turns haemoglobin in g/L — the SI-oriented unit used in the UK, Scandinavia and many European countries — into g/dL, used in Germany, Austria, Turkey and the USA. Because 1 dL is 0.1 L, the factor is exactly 10; the main risk is not the arithmetic but reading one unit as the other.

When to use it

Interpreting UK or Scandinavian lab reports and guidelines in a g/dL setting
Comparing serial values when a patient has been treated in different countries
Translating guideline thresholds written in g/L into the locally used unit

When not to use it

Values in mmol/L (Netherlands) — use the molar converter
Values that are already in g/dL — check the report header before dividing

How it is calculated

Haemoglobin (g/dL) = Hb (g/L) ÷ 10

Clinical pearls and limitations

Converts units only; reference ranges depend on the laboratory, the assay and the patient.
g/dL = g/L ÷ 10; round to one decimal place.
A three-digit Hb is almost always g/L; a one- or two-digit value with a decimal is almost always g/dL — but the printed unit, not the pattern, decides.
Discharge letters translated between languages sometimes keep the number and change the unit (or vice versa); recheck against the original report.

Frequently asked questions

How do I convert haemoglobin from g/L to g/dL?

Divide by 10. Example: 124 g/L = 12.4 g/dL; 92 g/L = 9.2 g/dL.

What is 100 g/L haemoglobin in g/dL?

10 g/dL.

Is g/L more precise than g/dL?

No. The measurement is the same; g/L simply shifts the decimal point so results can be written as whole numbers.

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.

Have a follow-up question?

Medelix answers clinical questions from current guidelines and studies — every statement with its source.

Related calculators

Embed this calculatorFree to use on your website, intranet or teaching page. Copy the code below.

<iframe src="https://medelix.ai/en/embed/hemoglobin-gl-to-gdl" title="Haemoglobin g/L → g/dL – Medelix" width="100%" height="620" style="border:0;max-width:720px" loading="lazy"></iframe>
<p><a href="https://medelix.ai/en/calculators/hemoglobin-g-l-to-g-dl">Haemoglobin g/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.