A milligram (mg) is a unit of mass in the metric system, equal to one-thousandth of a gram (1 mg = 0.001 g). It's one of the smallest standard units used in everyday measurements and is essential when dealing with very light weights. Milligrams are especially useful for measuring things that are too small to be weighed in grams—like medication doses, vitamins, or trace ingredients in scientific experiments.
The word "milligram" is derived from Latin roots: milli-, meaning "one-thousandth," and gramma meaning "a small weight." It became part of the International System of Units (SI) as countries adopted metric standards for more precise and consistent measurements.
How is the Milligram Used: The milligram plays a vital role in fields where accuracy matters most. Because it's a tiny measurement, even slight errors can affect results—especially in health and science.
A kilogram, abbreviated as kg, is the standard unit of mass in the metric system used in nearly every country in the world. Whether you're weighing yourself at the gym, buying fruits at the grocery store, or measuring ingredients in a recipe, chances are you're using kilograms, especially if you're outside the U.S.
The term "kilogram" comes from French, combining kilo (meaning "a thousand") with gram. One kilogram equals 1,000 grams. Originally, the kilogram was defined by a physical object a platinum-iridium cylinder stored in France. But since 2019, scientists now define it using fundamental constants of nature like the Planck constant, making it far more precise and stable for scientific use.
How the Kilogram Is Used:The kilogram is part of everyday life in countries using the metric system:
1 mg = 0.000001 kg
Let’s say you want to convert 100 mg to kg.
Using the formula:
100 × 0.000001 = 0 kg
So, 100 mg is approximately 0 kg.
| Milligram (mg) | Kilogram (kg) |
|---|---|
| 1 mg | 0 kg |
| 2 mg | 0 kg |
| 3 mg | 0 kg |
| 4 mg | 0 kg |
| 5 mg | 0 kg |
| 6 mg | 0 kg |
| 7 mg | 0 kg |
| 8 mg | 0 kg |
| 9 mg | 0 kg |
| 10 mg | 0 kg |
| 11 mg | 0 kg |
| 12 mg | 0 kg |
| 13 mg | 0 kg |
| 14 mg | 0 kg |
| 15 mg | 0 kg |