mg to mcg converter

1 milligram equals 1,000 micrograms (µg). Conversions use mcg = mg × 1000

mg → 1,000 mcg

mcg = mg × 1000

Converter

Worked examples

1 mg = 1,000 mcg
2 mg = 2,000 mcg
5 mg = 5,000 mcg
10 mg = 10,000 mcg
100 mg = 100,000 mcg

milligrams to micrograms (µg) conversion table

mg	mcg	Arithmetic
0.025 mg	25 mcg	× 1000
0.05 mg	50 mcg	× 1000
0.1 mg	100 mcg	× 1000
0.25 mg	250 mcg	× 1000
0.5 mg	500 mcg	× 1000
1 mg	1,000 mcg	× 1000
2 mg	2,000 mcg	× 1000
5 mg	5,000 mcg	× 1000
3 mg	3,000 mcg	× 1000
4 mg	4,000 mcg	× 1000
6 mg	6,000 mcg	× 1000
8 mg	8,000 mcg	× 1000
10 mg	10,000 mcg	× 1000
12 mg	12,000 mcg	× 1000
15 mg	15,000 mcg	× 1000
20 mg	20,000 mcg	× 1000
25 mg	25,000 mcg	× 1000
30 mg	30,000 mcg	× 1000
40 mg	40,000 mcg	× 1000
50 mg	50,000 mcg	× 1000
60 mg	60,000 mcg	× 1000
70 mg	70,000 mcg	× 1000
80 mg	80,000 mcg	× 1000
90 mg	90,000 mcg	× 1000
100 mg	100,000 mcg	× 1000

How to convert mg to mcg

Take your value in milligrams.
Multiply by 1000
That is your answer in micrograms (µg) — no rounding needed until you choose a display precision.

Related conversions

mcg to mg mcg to g g to mcg all medical dose units

Questions

How many micrograms (µg) in 1 milligram?

Exactly 1,000 mcg. The factor follows from the definitions of both units, not from a measurement, so it is exact.

How do I convert mg to mcg?

Multiply the milligrams figure by 1000 — or use the converter above, which updates as you type.

Is mg to mcg the same as mcg to mg?

No — they are inverses. One mg is 1,000 mcg, while one mcg is 0.001 mg.

What is 0.025 mg in mcg?

0.025 mg = 25 mcg (see the value page for the full arithmetic).