Milligrams to Grams

Convert mg to g instantly — with a table, common amounts, and a live calculator.

1 mg equals 0.001 g.

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Result (g)0.001 g

mg to g table

mgg
0.25 mg0.00025 g
0.5 mg0.0005 g
0.75 mg0.00075 g
1 mg0.001 g
1.5 mg0.0015 g
2 mg0.002 g
2.5 mg0.0025 g
3 mg0.003 g
4 mg0.004 g
5 mg0.005 g
6 mg0.006 g
7 mg0.007 g
7.5 mg0.0075 g
8 mg0.008 g
10 mg0.01 g
12 mg0.012 g
15 mg0.015 g
20 mg0.02 g
25 mg0.025 g
50 mg0.05 g
75 mg0.075 g
100 mg0.1 g

g to mg (reverse)

gmg
0.25 g250 mg
0.5 g500 mg
0.75 g750 mg
1 g1000 mg
1.5 g1500 mg
2 g2000 mg
2.5 g2500 mg
3 g3000 mg
4 g4000 mg
5 g5000 mg
6 g6000 mg
7 g7000 mg
7.5 g7500 mg
8 g8000 mg
10 g10000 mg
12 g12000 mg
15 g15000 mg
20 g20000 mg
25 g25000 mg
50 g50000 mg
75 g75000 mg
100 g100000 mg

Common amounts

mgg
1/8 mg0.000125 g
1/4 mg0.00025 g
1/3 mg0.000333 g
1/2 mg0.0005 g
2/3 mg0.000667 g
3/4 mg0.00075 g
1 mg0.001 g
1 1/4 mg0.00125 g
1 1/2 mg0.0015 g
1 3/4 mg0.00175 g
2 mg0.002 g
2 1/2 mg0.0025 g

How it scales

000001234mg

1 kilogram in other units

1000g35.3oz2.2lb0.2st

The ratio at a glance

1 mg0 g

Imperial and metric weight units

Ounces, pounds, and stone belong to the imperial/US system, while milligrams, grams, kilograms, and metric tons are metric. The international avoirdupois pound is defined as exactly 453.59237 grams.

Mass-to-mass conversions are exact and rest on fixed factors — for more unit pairs, use our weight conversion hub.

Related conversions

Where weight conversions are used

Weight (mass) conversions show up in cooking, shipping, fitness, and travel — anywhere recipes, luggage limits, or body weight are quoted in pounds, ounces, kilograms, or grams.

  • One pound is defined as exactly 0.45359237 kg, so the kilogram ↔ pound factor never changes.
  • Strictly, kilograms measure mass and pounds-force measure weight, but in everyday use the two are converted directly.
  • A metric tonne is 1,000 kg; a US (short) ton is about 907 kg and a UK (long) ton about 1,016 kg.

Frequently asked questions

How many g are in a mg?

1 mg equals 0.001 g.

How many g are in 2 mg?

2 mg equal 0.002 g.

How do I convert mg to g?

Divide the number of mg by 1000 to get g.

Is the mg-to-g conversion exact?

Yes. Mass-to-mass conversions are exact; the values here are only rounded to two decimal places.

Why are there imperial and metric weight units?

Ounces, pounds, and stone belong to the imperial/US system, while milligrams, grams, kilograms, and metric tons are metric. All conversions rest on fixed, exact factors.

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