C-peptide unit converter
By-product of insulin production (own insulin secretion)
Also known as: Connecting peptide, Insulin C-peptide, Peptide C, Péptido C, Peptide C insulinico, Peptídeo C
Converter
Enter a value in any unit and all other units fill in.
Worked example
1.8 ng/mL (middle of the reference range) = 0.596 nmol/L
Conversion formulas
| nmol/L | nmol/L = ng/mL × 0.3311 | ng/mL = nmol/L × 3.02 |
|---|---|---|
| pmol/L | pmol/L = ng/mL × 331.1 | ng/mL = pmol/L × 0.00302 |
| µg/dL | µg/dL = ng/mL × 0.1 | ng/mL = µg/dL × 10 |
| ng/dL | ng/dL = ng/mL × 100 | ng/mL = ng/dL × 0.01 |
| ng/L | ng/L = ng/mL × 1000 | ng/mL = ng/L × 0.001 |
Reference range
| Unit | Adults |
|---|---|
| nmol/L | 0.0993 – 1.093 |
| ng/mL | 0.3 – 3.3 |
| pmol/L | 99.33 – 1093 |
| µg/dL | 0.03 – 0.33 |
| ng/dL | 30 – 330 |
| ng/L | 300 – 3300 |
Source: MedlinePlus (NLM): Insulin C-peptide test · Last reviewed: 2026-10-14
Note from the source: 0.3-3.3 ng/mL (0.2-1.0 nmol/L); interpretation depends on the blood glucose level (MedlinePlus)