mcgtomg.com › mmol/L to mg/dL

mmol/L to mg/dL Converter

Convert blood results between mmol/L and mg/dL. The factor depends on the substance measured, so choose the analyte below, glucose is the default.

mmol/L ⇄ mg/dL
mmol/L
=
mg/dL
Analyte:
Result5.5 mmol/L = 99.09 mg/dL (Glucose)
Quick answer
Different countries report blood work in different units: mmol/L in much of the world, mg/dL in the US. The conversion factor is set by the molecule's weight, so glucose uses ×18.0156 while cholesterol uses ×38.67. That makes a glucose of 5.5 mmol/L about 99 mg/dL. Pick the analyte to use the right factor.

Conversion table

mmol/L (mmol/L)mg/dL (mg/dL)
3 mmol/L54.05
4 mmol/L72.06
5 mmol/L90.08
5.6 mmol/L100.89
7 mmol/L126.11
10 mmol/L180.16
11.1 mmol/L199.97
15 mmol/L270.23

How to convert mmol/L to mg/dL

mg/dL = mmol/L × (factor)glucose ≈ 18.02 · cholesterol ≈ 38.67 · reverse: mmol/L = mg/dL ÷ factor
mmol/L
the result in millimoles per litre
mg/dL
the result in milligrams per decilitre
factor
set by the analyte's molar mass

These factors are standard, but reference ranges differ by lab and person. This converts units only and is not a diagnosis, discuss results with your doctor.

Frequently asked questions

What is 5.5 mmol/L glucose in mg/dL?

About 99 mg/dL, using the glucose factor of 18.0156.

What is 100 mg/dL glucose in mmol/L?

About 5.55 mmol/L.

Why do glucose and cholesterol use different factors?

The factor comes from each substance's molar mass, which is different, so glucose and cholesterol convert differently.

What is 200 mg/dL cholesterol in mmol/L?

About 5.17 mmol/L, using the cholesterol factor of 38.67.

Quick facts
Glucose
×18.0156
Cholesterol
×38.67
5.5 mmol/L glucose
≈ 99 mg/dL
Use
unit conversion only