Grams to Milligrams Converter
Convert grams (g) to milligrams (mg) instantly. Weight units matter at the wet market, where older stalls and Chinese medical halls still quote prices per kati or tael, and when following American recipes in ounces and pounds.
Result
- Milligrams
- 1,000 mg
How to use the grams to milligrams converter
- Enter the grams (g).
- The results update as you type, or press Calculate.
- Read the milligrams first, then the supporting figures below it.
Formula
Milligrams = grams × 1,000
Worked example
For example, with these inputs:
- Grams (g): 1
the calculator returns:
- Milligrams: 1,000 mg
Grams to Milligrams table
| Grams | Milligrams |
|---|---|
| 1 g | 1,000 mg |
| 2 g | 2,000 mg |
| 5 g | 5,000 mg |
| 10 g | 10,000 mg |
| 20 g | 20,000 mg |
| 25 g | 25,000 mg |
| 50 g | 50,000 mg |
| 100 g | 100,000 mg |
| 250 g | 250,000 mg |
| 500 g | 500,000 mg |
| 1,000 g | 1,000,000 mg |
About this conversion
Weight units matter at the wet market, where older stalls and Chinese medical halls still quote prices per kati or tael, and when following American recipes in ounces and pounds.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
Frequently asked questions
How many milligrams are in one gram?
1 g = 1,000 mg.
How do I convert g to mg?
Milligrams = grams × 1,000.