⚖️ g to mg — Gram to Milligram Converter

Convert weight and mass units — kilograms, pounds, ounces, grams, tons, stones.

Formula 1 g = 1000 mg
UnitNameValue
kg Kilogram 0.001
mg Milligram 1000
t Metric Ton 0.000001
lb Pound 0.0022046244
oz Ounce 0.035273991
st Stone 0.00015747312

About Gram to Milligram Conversion

The Gram (g) and the Milligram (mg) are both units of weight & mass. Converting between them is straightforward using the formula above.

Formula: 1 g = 1000 mg

This converter uses internationally recognized conversion factors. All calculations are performed client-side in your browser — no data is sent to any server.

Frequently Asked Questions

How do I convert Gram to Milligram?

Use the converter above — enter your value in Gram and the result appears instantly in Milligram. The formula is: 1 g = 1000 mg

How many Milligram are in 100 Gram?

100 g = 100000 mg

What is 1 Gram in Milligram?

1 g = 1000 mg

Is this Gram to Milligram converter free?

Yes — Unitafy is completely free, requires no signup, and works instantly in your browser.