Isoniazid (post-dose): convert µmol/L to µg/mL
µg/mL = µmol/L × 0.1371
Calculator
Enter a value in any unit and all other units fill in.
Conversion formulas
| µmol/L → µg/mL | µg/mL = µmol/L × 0.1371 |
|---|---|
| µg/mL → µmol/L | µmol/L = µg/mL × 7.292 |
Conversion table
Highlighted: values inside the adult reference range.
| µmol/L | µg/mL |
|---|---|
| 5 | 0.6857 |
| 10 | 1.371 |
| 15 | 2.057 |
| 20 | 2.743 |
| 25 | 3.429 |
| 30 | 4.114 |
| 35 | 4.8 |
| 40 | 5.486 |
| 45 | 6.171 |
| 50 | 6.857 |
| 55 | 7.543 |
| 60 | 8.228 |
| 65 | 8.914 |
| 70 | 9.6 |
| 75 | 10.29 |
| 80 | 10.97 |
Reference range
21.88 – 36.46 µmol/L = 3 – 5 µg/mL
Source: Severn Pathology (North Bristol NHS Trust): Isoniazid and N-acetyl isoniazid · Last reviewed: 2026-10-19