Vitamin A unit converter

Convert vitamin A between µg/dL, µmol/L, mg/L and µg/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

From

1 µg/dL = 0.0349 µmol/L. Nothing you type here leaves your browser.

The conversion

1 µg/dL = 0.0349 µmol/LFrom µg/dL to µmol/L: divide by 28.65. Back again: multiply by 28.65.
1 µg/dL = 0.01 mg/LFrom µg/dL to mg/L: divide by 100. Back again: multiply by 100.
1 µg/dL = 10 µg/LFrom µg/dL to µg/L: multiply by 10. Back again: divide by 10.

Mass and molar units are linked by the molecular weight: 286.5 g/mol (Retinol, C20H30O). Source: PubChem, National Library of Medicine.

From zero to about twice the usual upper limit, plus the usual limits themselves.

Vitamin A values in µg/dL, µmol/L, mg/L and µg/L
µg/dL	µmol/L	mg/L	µg/L
10	0.35	0.1	100
20	0.7	0.2	200
32.5	1.13	0.33	325
40	1.4	0.4	400
60	2.09	0.6	600
78	2.72	0.78	780
80	2.79	0.8	800
100	3.49	1	1,000
120	4.19	1.2	1,200
140	4.89	1.4	1,400

What labs print as the reference range, by who was tested. Sources for each range are on the Vitamin A page.

Usual ranges for Vitamin A in µg/dL, µmol/L, mg/L and µg/L
Who	µg/dL	µmol/L	mg/L	µg/L
under 7	11.3–64.7	0.39–2.26	0.11–0.65	113–647
7–12	12.8–81.2	0.45–2.83	0.13–0.81	128–812
13–17	14.4–97.7	0.5–3.41	0.14–0.98	144–977
18+	32.5–78	1.13–2.72	0.33–0.78	325–780