Medical Unit Converter: mmol/L, mg/dL, HbA1c and More

Convert common clinical units: glucose, cholesterol, HbA1c, creatinine, weight, height and temperature.

By Dr Amer Sheikh, GP Updated 17 October 2026 Clinical review pending

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Common conversions

Measure	Conversion
Glucose	mg/dL ÷ 18 = mmol/L
Cholesterol	mg/dL ÷ 38.67 = mmol/L
Triglycerides	mg/dL ÷ 88.57 = mmol/L
Creatinine	mg/dL × 88.4 = µmol/L
HbA1c	mmol/mol = (% − 2.15) × 10.929
Weight	1 stone = 6.35 kg

Handy for results from abroad, older records and patient home monitors.

Frequently asked questions

How do I convert HbA1c % to mmol/mol?

Subtract 2.15 and multiply by 10.929. For example 7% is 53 mmol/mol.

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

Divide by 18.

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

Multiply by 88.4.

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References

IFCC HbA1c standardisation. Diabetes UK.

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