A pound, abbreviated as "b," is a unit of weight commonly used in the United States and a few other countries that follow the imperial system. The term "pound" comes from the Latin word libra, which is why the abbreviation is "lb.”
One pound is equal to 16 ounces or approximately 0.4536 kilograms in the metric system. It's often used for measuring body weight, grocery items, shipping packages, and more in everyday American life.
The pound dates back to Roman times and has evolved through various systems. The current definition used in the U.S. is based on the avoirdupois system, which standardizes one pound as 16 ounces. This system has been in use in English-speaking countries since the 14th century.
How is the Pound Used Today: The pound plays a central role in both consumer life and various industries across the U.S. and the UK. From shopping to science, it's a standard unit for weight measurement when using the imperial system.
A microgram (mcg) is a metric unit of mass equal to one-millionth of a gram. It’s one of the smallest standard units of mass, commonly used in medical, nutritional, and scientific settings where extremely small quantities matter.
The term comes from the Greek word mikros meaning “small” and “gram,” the base metric unit for mass. Its official SI symbol is µg. However, in medical practice especially in the U.S. mcg is used to prevent confusion with mg (milligram), which is 1,000 times larger.
How Is Microgram Used?
1 lb = 453,592,370 µg
Let’s say you want to convert 100 lb to µg.
Using the formula:
100 × 453,592,370 = 45,359,237,000 µg
So, 100 lb is approximately 45,359,237,000 µg.
| Pound (lb) | Microgram (µg) |
|---|---|
| 1 lb | 453,592,370 µg |
| 2 lb | 907,184,740 µg |
| 3 lb | 1,360,777,110 µg |
| 4 lb | 1,814,369,480 µg |
| 5 lb | 2,267,961,850 µg |
| 6 lb | 2,721,554,220 µg |
| 7 lb | 3,175,146,590 µg |
| 8 lb | 3,628,738,960 µg |
| 9 lb | 4,082,331,330 µg |
| 10 lb | 4,535,923,700 µg |
| 11 lb | 4,989,516,070 µg |
| 12 lb | 5,443,108,440 µg |
| 13 lb | 5,896,700,810 µg |
| 14 lb | 6,350,293,180 µg |
| 15 lb | 6,803,885,550 µg |