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Mg to Grams Converter (Milligrams to Grams)

1 milligram = 0.001 grams. To convert mg to g, multiply by 0.001, or divide by 1,000.

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100 mg = 0.1 g

1 mg
0.001 g
1 g
1,000 mg
10 mg
0.01 g
100 mg
0.1 g

How to convert mg to Grams

1 milligram equals 0.001 grams, so the conversion is a single multiplication.

g = mg × 0.001

Example: 150 mg × 0.001 = 0.15 g.

About the gram

Gram (g)

One gram is a thousandth of a kilogram. It's the standard unit on nutrition labels and kitchen scales outside the US.

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
Grams to mgReverse conversionGrams to oz1 g = 0.03527 ozoz to Grams1 oz = 28.3495 gGrams to lbs1 g = 0.002205 lblbs to Grams1 lb = 453.5924 gkg to Grams1 kg = 1,000 gGrams to kg1 g = 0.001 kgCarats to Grams1 ct = 0.2 gGrams to Carats1 g = 5 ctTroy oz to Grams1 oz t = 31.1035 gGrams to Troy oz1 g = 0.03215 oz tmcg to mg1 µg = 0.001 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 Grams FAQ

How many grams are in a milligram?

1 milligram = 0.001 grams.

How many milligrams are in a gram?

1 gram = 1,000 milligrams.

How do I convert mg to g?

Use g = mg × 0.001. For example, 10 mg = 0.01 g.

Can I print this mg to Grams 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.