C4 unit converter
Convert C4 between mg/dL, g/L and mg/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 mg/dL = 0.01 g/L. Nothing you type here leaves your browser.
The conversion
- 1 mg/dL = 0.01 g/LFrom mg/dL to g/L: divide by 100. Back again: multiply by 100.
- 1 mg/dL = 10 mg/LFrom mg/dL to mg/L: multiply by 10. Back again: divide by 10.
Common values
From zero to about twice the usual upper limit, plus the usual limits themselves.
| mg/dL | g/L | mg/L |
|---|---|---|
| 10 | 0.1 | 100 |
| 12 | 0.12 | 120 |
| 20 | 0.2 | 200 |
| 30 | 0.3 | 300 |
| 38 | 0.38 | 380 |
| 40 | 0.4 | 400 |
| 50 | 0.5 | 500 |
| 60 | 0.6 | 600 |
| 70 | 0.7 | 700 |
Usual ranges in each unit
What labs print as the reference range, by who was tested. Sources for each range are on the C4 page.
| Who | mg/dL | g/L | mg/L |
|---|---|---|---|
| 18+ | 12–38 | 0.12–0.38 | 120–380 |
| under 0.0821 | 8–30 | 0.08–0.3 | 80–300 |
| 0.0821–-0.8333 | 9–33 | 0.09–0.33 | 90–330 |
| 0.1667–-0.75 | 9–37 | 0.09–0.37 | 90–370 |
| 0.25–-0.6667000000000001 | 10–35 | 0.1–0.35 | 100–350 |
| 0.3333–-0.5832999999999999 | 10–49 | 0.1–0.49 | 100–490 |
| 0.4167–-0.5 | 9–48 | 0.09–0.48 | 90–480 |
| 0.5–-0.41669999999999996 | 12–55 | 0.12–0.55 | 120–550 |
| 0.5833–-0.25 | 13–48 | 0.13–0.48 | 130–480 |
| 0.75–0 | 16–51 | 0.16–0.51 | 160–510 |
| 1 | 16–52 | 0.16–0.52 | 160–520 |
| 2–4 | 12–47 | 0.12–0.47 | 120–470 |
| 5–11 | 13–44 | 0.13–0.44 | 130–440 |
| 12–17 | 14–41 | 0.14–0.41 | 140–410 |