Weight Converter
Milligram
Definition: A milligram (symbol: mg) is a metric unit of mass equal to one-thousandth of a gram and one-millionth of a kilogram.
History/origin: The milligram is part of the International System of Units (SI). The prefix "milli-" indicates the division of the base unit by one thousand.
Current use: Milligrams are used almost exclusively in pharmacy, medicine, and chemistry to measure very small quantities of substances, such as the active ingredients in tablets.
Pound
Definition: The pound (symbol: lb) is a unit of mass used in the imperial and US customary systems. The international avoirdupois pound is defined as exactly 0.45359237 kilograms.
History/origin: The pound was derived from the Roman "libra." Over centuries, many different versions of the pound existed until the international pound was agreed upon in 1959.
Current use: The pound is the primary unit of body weight and grocery weight in the United States, and is also common in the United Kingdom and Canada.
Milligram to Pound Conversion Table
| Milligram [mg] | Pound [lb] |
|---|---|
| 0.01 mg | 0.00000002 lb |
| 0.1 mg | 0.00000022 lb |
| 1 mg | 0.0000022 lb |
| 2 mg | 0.00000441 lb |
| 3 mg | 0.00000661 lb |
| 5 mg | 0.00001102 lb |
| 10 mg | 0.00002205 lb |
| 20 mg | 0.00004409 lb |
| 50 mg | 0.00011023 lb |
| 100 mg | 0.00022046 lb |
| 1000 mg | 0.00220462 lb |
How to Convert Milligram to Pound
1 mg = 0.0000022 lb
1 lb = 453592.37 mg
Example: convert 15 mg to lb:
15 mg = 15 × 0.0000022 lb = 0.00003307 lb
Did You Know?
- The abbreviation for pound, "lb," comes from the Roman unit of weight, the "libra." This is also why the astrological sign Libra is represented by a set of scales.