Kidney

Cystatin C unit converter

Kidney function marker (independent of muscle mass)

Also known as: CysC, Gamma-trace protein, Cystatine C, Cistatina C

Converter

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

mg/L nmol/L µg/dL µg/L

Worked example

0.935 mg/L (middle of the reference range) = 70.1 nmol/L

Conversion formulas

nmol/L	nmol/L = mg/L × 74.95	mg/L = nmol/L × 0.01334
µg/dL	µg/dL = mg/L × 100	mg/L = µg/dL × 0.01
µg/L	µg/L = mg/L × 1000	mg/L = µg/L × 0.001

Reference range

Unit	Adults
mg/L	0.59 – 1.28
nmol/L	44.22 – 95.93
µg/dL	59 – 128
µg/L	590 – 1280

Source: Alfred Health Pathology Handbook · Last reviewed: 2026-10-14

Frequently asked questions

How do I convert Cystatin C from mg/L to nmol/L?

nmol/L = mg/L × 74.95. In the other direction: mg/L = nmol/L × 0.01334.

What is the reference range of Cystatin C?

For adults the range is 0.59 – 1.28 mg/L (Alfred Health Pathology Handbook). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Cystatin C?

Common units are mg/L, nmol/L, µg/dL, µg/L.