2000 IU is equivalent to 50 micrograms not mg. ... Specifically for the Vitamin D3 (cholecalciferol) 1 IU = 0.025 micrograms. 2000 IU is equivalent to 50 mg, which is 500% of the required daily value.

How many IU's is 50 mcg of vitamin D3?

Vitamin D-3 Drops, 50 mcg (2,000 IU) 1fl.

What does 50 mcg mean on a vitamin bottle?

“I.U.,” stands for “International Unit” and is the standard for measuring fat-soluble vitamins, which include vitamins A, D, E and K. The abbreviation “mg” stands for milligrams, or one-thousandths of a gram, and “mcg” stands for micrograms, or one millionths of a gram.