ConvBolt — Unit ConverterMilligram (mg) Converter Hub
The milligram (mg) is one of the units in the weight family. Rather than jump between 7 separate converter pages, this hub gathers every mg conversion in one place: the table below gives the factor for each partner unit in both directions, so you can see at a glance whether a value will come out larger or smaller.
The numbers are exact to seven significant figures, which is more precision than most day-to-day work needs but matters when a factor is applied repeatedly in a spreadsheet or a batch calculation. As a quick sense of scale: 1000 mg = 1 g, and 1000 mg = 0.001 kg.
Every row links to a dedicated converter with a worked example, a full value table and the reverse page, so you can go straight from this overview to the specific conversion you need.
All mg conversions
| Convert from mg | Factor | Convert to mg |
|---|---|---|
| mg to g | 0.001 g | g to mg |
| mg to kg | 1.0000e-6 kg | kg to mg |
| mg to oz | 3.5274e-5 oz | oz to mg |
| mg to lb | 2.2046e-6 lb | lb to mg |
| mg to st | 1.5747e-7 st | st to mg |
| mg to t | 1.0000e-9 t | t to mg |
| mg to ton | 1.1023e-9 ton | ton to mg |
Popular mg conversions
Use any of the converters in the table above.
Frequently asked questions
How many units can the mg be converted to?
7 partner units in the Weight family: g, kg, oz, lb, st, t, ton.
What is the mg conversion factor?
Milligram: 1 mg = 0.001 g; 1 mg = 1.0000e-6 kg; 1 mg = 3.5274e-5 oz, and so on for every other partner unit.
Back to the Weight conversions hub, the ConvBolt Unit Converter, or browse our conversion guides.