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Mg to mcg Converter (Milligrams to Micrograms)

1 milligram = 1,000 micrograms. To convert mg to µg, multiply by 1,000.

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100 mg = 100,000 µg

1 mg
1,000 µg
1 µg
0.001 mg
10 mg
10,000 µg
100 mg
100,000 µg

How to convert mg to mcg

1 milligram equals 1,000 micrograms, so the conversion is a single multiplication.

µg = mg × 1,000

Example: 150 mg × 1,000 = 150,000 µg.

1 milligram in every weight unit

Pounds0.000002205 lb
Kilograms0.000001 kg
Grams0.001 g
Ounces0.00003527 oz
Stone1.575e-7 st
Metric Tons1e-9 t
Short Tons (US)1.102e-9 ton
Long Tons (UK)9.842e-10 LT
Carats0.005 ct
Grains0.01543 gr
Troy Ounces0.00003215 oz t
Troy Pounds0.000002679 lb t
Pennyweights0.000643 dwt
Micrograms1,000 µg
Slugs6.852e-8 slug
Hundredweight (US)2.205e-8 US cwt
Hundredweight (UK)1.968e-8 UK cwt
mcg to mgReverse conversionmg to Grams1 mg = 0.001 gGrams to mg1 g = 1,000 mg

Quick answers

How many ounces in a pound?16 ouncesHow many grams in an ounce?28.35 gramsHow many pounds in a ton?2,000 pounds

mg to mcg FAQ

How many micrograms are in a milligram?

1 milligram = 1,000 micrograms.

How many milligrams are in a microgram?

1 microgram = 0.001 milligrams.

How do I convert mg to µg?

Use µg = mg × 1,000. For example, 10 mg = 10,000 µg.

Can I print this mg to mcg chart?

Yes. Use "Print / Save PDF" next to the converter for a one-page chart, or "Download CSV" to open it in Excel or Google Sheets.