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Find out how to convert Mg to Grams and Grams to Mg
How many Milligram to Gram ? (mg to g)
The formula to convert milligrams to grams is:
grams = milligrams / 1000
For example, to convert 500 mg to grams, divide 500 by 1000:
grams = 500 mg / 1000 = 0.5 g
How many Gram to Milligram? (1 gram to mg)
The formula to convert grams to milligrams is:
milligrams = grams * 1000
To convert 2.5 g to milligrams, multiply 2.5 by 1000:
milligrams = 2.5 g * 1000 = 2500 mg
Milligrams and Grams: Everything You Need to Know (and More!)

A gram is the basic unit of mass in the International System of Units (SI). It is defined as one-thousandth of a kilogram.
A milligram is one-thousandth of a gram.
- The origin of the gram and milligram can be traced back to the French Revolution in the late 18th century. At that time, the French government was looking for a new system of measurement that was more logical and easier to use than the existing system. They commissioned a group of scientists to develop a new system, which was eventually adopted as the metric system in 1799.
- A gram is equal to the mass of one cubic centimeter of pure water at 4 degrees Celsius and one atmosphere of pressure. A milligram is equal to one thousandth of a gram.
- The word "gram" comes from the Latin word "gramma," which means "small weight.. The word "milligram" comes from the Latin word "mille," which means "thousand," and the word "gram." A milligram is one thousandth of a gram, or 0.001 grams.
- Grams and milligrams are used to measure a wide variety of substances, including food, medicine, and chemicals.
Here are some additional facts about grams and milligrams:
- One gram of water has a volume of one milliliter.
- The average human adult weighs about 70 kilograms, which is equal to 70,000 grams.
- A single grain of rice weighs about 5 milligrams.
- A teaspoon of sugar weighs about 4 grams.
- A US dollar bill weighs about one gram.
- The smallest object that can be seen with the naked eye weighs about 0.1 milligrams.
- The most expensive substance in the world is californium-252, which is a radioactive isotope of californium. It costs about $27 million per milligram.
Here are some examples of when to use grams vs. milligrams:
Grams:
- Measuring the mass of food items, such as fruits, vegetables, and meat.
- Measuring the mass of cooking ingredients.
- Measuring the mass of packaged goods, such as cereal and flour.
- Measuring the mass of jewelry and other precious metals.
- Measuring the mass of chemicals in a laboratory setting.
Milligrams:
- Measuring the mass of medicine doses.
- Measuring the mass of vitamin supplements.
- Measuring the mass of very small objects, such as cells and DNA molecules.
- Measuring the mass of drugs in a laboratory setting.
- Measuring the mass of chemicals in a manufacturing setting.
Here is a comparison table for milligrams (mg) and grams (g):
Characteristic | Milligrams (mg) | Grams (g) |
---|---|---|
Definition | Unit of mass equal to one thousandth of a gram | Unit of mass in the metric system |
Symbol | mg | g |
Base unit | No | Yes |
Commonly used to measure | Small quantities of mass, such as medicine doses and vitamin supplements. | Larger quantities of mass, such as food items and packaged goods. |
Examples | 100 mg of ibuprofen, 500 mg of vitamin C, 1 mg of powder | 100 g of apple, 250 g of flour, 1000 g of gold |
- Grams and milligrams are often used in cooking and baking to measure ingredients precisely.
- Grams are used to measure the amount of medication in a pill or capsule.
- Milligrams are used to measure the amount of caffeine in a cup of coffee.
- Grams are used to measure the amount of sugar in a serving of food.
- Milligrams are used to measure the amount of vitamin C in a piece of fruit.
- Grams are used to measure the amount of protein in a serving of meat.
- Milligrams are used to measure the amount of cholesterol in an egg.
Note: The above content has inputs from Bard, the AI model from Google.
Milligram to Gram (mg to gm, mg to g conversion) Table

Milligram(mg) | Gram(g) |
---|---|
0.2 mg | 0.0002 g |
1 mg | 0.001 g |
1.5 mg | 0.0015 g |
2 mg | 0.002 g |
4 mg | 0.004 g |
5 mg | 0.005 g |
10 mg | 0.01 g |
20 mg | 0.02 g |
25 mg | 0.025 g |
30 mg | 0.03 g |
40 mg | 0.04 g |
50 mg | 0.05 g |
60 mg | 0.06 g |
65 mg | 0.065 g |
100 mg | 0.1 g |
120 mg | 0.12 g |
125 mg | 0.125 g |
160 mg | 0.16 g |
200 mg | 0.2 g |
250 mg | 0.25 g |
300 mg | 0.3 g |
350 mg | 0.35 g |
400 mg | 0.4 g |
450 mg | 0.45 g |
500 mg | 0.5 g |
600 mg | 0.6 g |
700 mg | 0.7 g |
800 mg | 0.8 g |
900 mg | 0.9 g |
1000 mg | 1 g |
1200 mg | 1.2 g |
1500 mg | 1.5 g |
1600 mg | 1.6 g |
2000 mg | 2 g |
2400 mg | 2.4 g |
3000 mg | 3 g |
4000 mg | 4 g |
4500 mg | 4.5 g |
5000 mg | 5 g |
10000 mg | 10 g |
50000 mg | 50 g |
Gram to Milligram (grams to mg conversion) Table

Gram (g) | Milligram (mg) |
---|---|
0.015 g | 15 mg |
0.3 g | 300 mg |
0.5 g | 500 mg |
1 g | 1000 mg |
2 g | 2000 mg |
3 g | 3000 mg |
3.5 g | 3500 mg |
4 g | 4000 mg |
4.5 g | 4500 mg |
5 g | 5000 mg |
6 g | 6000 mg |
7 g | 7000 mg |
8 g | 8000 mg |
9 g | 9000 mg |
10 g | 10000 mg |
12 g | 12000 mg |
15 g | 15000 mg |
20 g | 20000 mg |
50 g | 50000 mg |
65 g | 65000 mg |