Homocysteine unit converter
Amino acid (cardiovascular and B-vitamin marker)
Also known as: Hcy, tHcy, Total homocysteine, Homocisteína, Omocisteina
Converter
Enter a value in any unit and all other units fill in.
Worked example
10 µmol/L (middle of the reference range) = 1.35 mg/L
Conversion formulas
| mg/L | mg/L = µmol/L × 0.1351 | µmol/L = mg/L × 7.4 |
|---|---|---|
| mg/dL | mg/dL = µmol/L × 0.01352 | µmol/L = mg/dL × 73.96 |
| µg/dL | µg/dL = µmol/L × 13.52 | µmol/L = µg/dL × 0.07396 |
| µg/L | µg/L = µmol/L × 135.2 | µmol/L = µg/L × 0.007396 |
| nmol/L | nmol/L = µmol/L × 1000 | µmol/L = nmol/L × 0.001 |
Reference range
| Unit | Adults |
|---|---|
| mg/L | 0.6757 – 2.027 |
| µmol/L | 5 – 15 |
| mg/dL | 0.0676 – 0.2028 |
| µg/dL | 67.6 – 202.8 |
| µg/L | 676 – 2028 |
| nmol/L | 5000 – 15 000 |
Source: The metabolism and significance of homocysteine in nutrition and health (Nutr Metab 2017, PMC) · Last reviewed: 2026-10-14
Note from the source: Normal total homocysteine 5-15 µmol/L; above 15 µmol/L is called hyperhomocysteinemia and some authors suggest an optimum below 10 µmol/L. Levels depend on folate, B12, B6 and kidney function