How do I convert Chloride (sweat) from mmol/L to mg/dL?

mg/dL = mmol/L × 3.545. In the other direction: mmol/L = mg/dL × 0.2821.

What is the reference range of Chloride (sweat)?

For adults the range is 0 – 30 mmol/L (MedlinePlus (NLM): Sweat electrolytes test). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Chloride (sweat)?

Common units are mmol/L, g/dL, g/L, mg/dL, mg/L.

Urine & CSF

Chloride (sweat) unit converter

Chloride in sweat (cystic fibrosis test)

Also known as: Sweat chloride, Schweißchlorid, Schweißtest, Sweat test

Converter

Enter a value in any unit and all other units fill in.

mmol/L = mEq/L g/dL g/L mg/dL mg/L

Worked example

15 mmol/L (middle of the reference range) = 0.0532 g/dL

Conversion formulas

g/dL	g/dL = mmol/L × 0.003545	mmol/L = g/dL × 282.1
g/L	g/L = mmol/L × 0.03545	mmol/L = g/L × 28.21
mg/dL	mg/dL = mmol/L × 3.545	mmol/L = mg/dL × 0.2821
mg/L	mg/L = mmol/L × 35.45	mmol/L = mg/L × 0.02821

Good to know

Chloride in sweat is reported in mmol/L or mEq/L, which are numerically identical.

1 mmol/L = 1 mEq/L.
The range shown is the cut-off for cystic fibrosis: below 30 makes it less likely, 60 or more indicates it.

Reference range

Unit	Adults
mmol/L = mEq/L	0 – 30
g/dL	0 – 0.1064
g/L	0 – 1.063
mg/dL	0 – 106.3
mg/L	0 – 1064

Source: MedlinePlus (NLM): Sweat electrolytes test · Last reviewed: 2026-10-19

Note from the source: Below 30 mmol/L makes cystic fibrosis less likely, 30-59 is unclear, 60 or more indicates cystic fibrosis (MedlinePlus). These are decision limits, not a normal range