CA 15-3 unit converter
Tumour marker used in breast cancer follow-up
Also known as: CA15-3, Cancer antigen 15-3, MUC1
Converter
Enter a value in any unit and all other units fill in.
Conversion formulas
| Equivalent notations | kU/L = U/mL | 1 : 1 |
|---|
Good to know
CA 15-3 is reported in kU/L or in U/mL, which are numerically identical.
- 1 kU/L = 1 U/mL.
- Results from different manufacturers cannot be compared; use the same laboratory for follow-up.
Reference range
| Unit | Adults |
|---|---|
| kU/L = U/mL | 0 – 29 |
Source: Newcastle Hospitals Laboratories: CA 153, serum · Last reviewed: 2026-10-19
Note from the source: 0-29 kU/L (= U/mL) (Newcastle Hospitals Laboratories); only suitable for follow-up of known disease, not for screening. Assays from different makers are not interchangeable