How many milligrams make 1 microgram?

Answer 1

1000.

The micro- prefix means millionth or 0.000001 = 10-6

The milli- prefix means thousandth or 0.001 = 10-3

→ 1 mg ÷ 1 µg = (1 x 10-3 g) ÷ (1 x 10-6) g

= 1 x 10-3 - -6

= 1 x 10-3 + 6

= 1 x 103

= 1000

Answer 2

1,000 milligrams (1/1,000 g) make 1 microgram (1/1,000,000 g).

Answer 3

1 milligram is equal to 1000 micrograms.