ALT unit converter
Convert ALT between U/L, µkat/L and nkat/L. Type in either box. The factors come from our catalog and are checked by code.
AI-verified against cited sources. Awaiting expert reviewLast reviewed 2026-10-03
1 U/L = 0.0167 µkat/L. Nothing you type here leaves your browser.
The conversion
- 1 U/L = 0.01667 µkat/LFrom U/L to µkat/L: divide by 60. Back again: multiply by 60.
- 1 U/L = 16.67 nkat/LFrom U/L to nkat/L: multiply by 16.67. Back again: divide by 16.67.
Common values
From zero to about twice the usual upper limit, plus the usual limits themselves.
| U/L | µkat/L | nkat/L |
|---|---|---|
| 10 | 0.17 | 167 |
| 20 | 0.33 | 333 |
| 25 | 0.42 | 417 |
| 30 | 0.5 | 500 |
| 32 | 0.53 | 533 |
| 33 | 0.55 | 550 |
| 40 | 0.67 | 667 |
| 44 | 0.73 | 733 |
| 50 | 0.83 | 833 |
| 60 | 1 | 1,000 |
| 70 | 1.17 | 1,167 |
| 80 | 1.33 | 1,333 |
Usual ranges in each unit
What labs print as the reference range, by who was tested. Sources for each range are on the ALT page.
| Who | U/L | µkat/L | nkat/L |
|---|---|---|---|
| Men, 18+ | 0–44 | 0–0.73 | 0–733 |
| Women, 18+ | 0–32 | 0–0.53 | 0–533 |
| Men, 12–17 | 0–30 | 0–0.5 | 0–500 |
| Women, 12–17 | 0–24 | 0–0.4 | 0–400 |
| Men, 1–11 | 0–29 | 0–0.48 | 0–483 |
| Women, 1–11 | 0–28 | 0–0.47 | 0–467 |