Milligrams to Grams Converter

Milligrams to Grams Converter

Grams
Kilograms
1 g = 1000 mg · 1 kg = 1,000,000 mg

How to convert milligrams to grams

To convert milligrams to grams, divide by 1000. There are exactly 1000 milligrams in every gram. For example, 500 mg ÷ 1000 = 0.5 grams. Going the other way, multiply grams by 1000 to get milligrams.

To convert milligrams to kilograms, divide by 1,000,000. So 500 mg ÷ 1,000,000 = 0.0005 kg.

1 g = 1000 mg. The prefix “milli” means one thousandth. Milligrams are commonly used in medicine, nutrition labels, and chemistry for very small weights.

Milligrams to grams conversion table

Milligrams (mg) Grams (g) Common reference
1 mg0.001 gvitamin pill dose
10 mg0.01 gsmall medication dose
100 mg0.1 gaspirin dose
250 mg0.25 gantibiotic dose
500 mg0.5 gstandard paracetamol
1000 mg1 g1 gram exactly
5000 mg5 gteaspoon of sugar
10000 mg10 gtwo teaspoons of sugar

Frequently asked questions

How many milligrams are in a gram?
There are exactly 1000 milligrams in 1 gram. The prefix “milli” always means one thousandth.
How many grams is 500 mg?
500 mg = 0.5 grams. Calculation: 500 ÷ 1000 = 0.5 g. This is a common medication dose.
How many mg is 1 gram?
1 gram = 1000 milligrams. Calculation: 1 × 1000 = 1000 mg.
How many mg is 2.5 grams?
2.5 grams = 2500 mg. Calculation: 2.5 × 1000 = 2500 mg.
How many mg is 1 kg?
1 kg = 1,000,000 mg = 1000 g. The prefix “kilo” means one thousand and “milli” means one thousandth.