Milligram to Gram

1 mg = 0.001 g

Value

From

Precision & format

Significant figures

Notation

1 mg equals

0.001g

All 21 units

Kilogramkg
0.000001
Gramg
0.001
Milligrammg
1
Microgramµg
1,000
Tonnet
metric ton
1 × 10⁻⁹
Poundlb
0.000002204622622
Ounceoz
0.00003527396195
Stonest
1.574730444 × 10⁻⁷
Short tonton (US)
US, 2000 lb
1.102311311 × 10⁻⁹
Long tonton (UK)
UK, 2240 lb
9.842065276 × 10⁻¹⁰
Hundredweight (US)cwt (US)
100 lb
2.204622622 × 10⁻⁸
Hundredweight (UK)cwt (UK)
112 lb
1.968413055 × 10⁻⁸
Graingr
0.01543235835
Dramdr
0.0005643833912
Caratct
metric, 200 mg
0.005
Troy ounceoz t
0.00003215074657
Troy poundlb t
0.000002679228881
Pennyweightdwt
0.0006430149314
Quintalq
metric, 100 kg
1 × 10⁻⁸
Slugslug
6.852176586 × 10⁻⁸
Atomic mass unitu
6.022140762 × 10²⁰

Milligram to Gram table

Common Milligram values converted to Gram
Milligram (mg)	Gram (g)
1	0.001
2	0.002
5	0.005
10	0.01
20	0.02
50	0.05
100	0.1
250	0.25
500	0.5
1,000	1

How the conversion works

Multiply the milligram figure by 0.001 to get gram. Every factor on this site is anchored to the SI base unit for weight & mass, so the same number is used everywhere it appears.

Going the other way, 1 g = 1,000 mg — see gram to milligram.

See all 21 weight & mass units →