Free fatty acids (NEFA) unit converter
Non-esterified fatty acids in plasma
Also known as: NEFA, Non-esterified fatty acids, FFA, Freie Fettsäuren
Converter
Enter a value in any unit and all other units fill in.
Conversion formulas
| Equivalent notations | mmol/L = mEq/L | 1 : 1 |
|---|
Good to know
Free fatty acids (NEFA) are reported in mmol/L or mEq/L, which are numerically identical.
- 1 mmol/L = 1 mEq/L.
- The value rises the longer you have fasted, so the fasting time has to be known to interpret it.
Reference range
| Unit | Adults |
|---|---|
| mmol/L = mEq/L | 0.5 – 2.8 |
Source: Newcastle Hospitals Laboratories: Free fatty acids (non-esterified fatty acids, NEFA), plasma · Last reviewed: 2026-10-19
Note from the source: Fasting (overall range) 0.5-2.8 mmol/L; after a 15 hour fast 0.5-1.6 mmol/L; non-fasting below 0.9 mmol/L (Newcastle Hospitals Laboratories). Strongly depends on the fasting time