Glucose Challenge (1 h) unit converter

Convert glucose challenge (1 h) between mg/dL and mmol/L. Type in either box. The factors come from our catalog and are checked by code.

AI-verified against cited sources. Awaiting expert reviewLast reviewed 2026-10-03

From

1 mg/dL = 0.0555 mmol/L. Nothing you type here leaves your browser.

The conversion

1 mg/dL = 0.05551 mmol/LFrom mg/dL to mmol/L: divide by 18.02. Back again: multiply by 18.02.

Mass and molar units are linked by the molecular weight: 180.16 g/mol (D-glucose, C6H12O6 (PubChem CID 5793)). Source: PubChem, National Library of Medicine.

Common values

From zero to about twice the usual upper limit, plus the usual limits themselves.

Glucose Challenge (1 h) values in mg/dL and mmol/L
mg/dL	mmol/L
50	2.8
100	5.6
130	7.2
140	7.8
150	8.3
200	11.1
250	13.9

Usual ranges in each unit

What labs print as the reference range, by who was tested. Sources for each range are on the Glucose Challenge (1 h) page.

Usual ranges for Glucose Challenge (1 h) in mg/dL and mmol/L
Who	mg/dL	mmol/L
Women, pregnancy t2	up to 139	up to 7.7
Women, pregnancy t3	up to 139	up to 7.7