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Multiple conversions
To convert from Pound (lb) to Microgram (mcg), use the following formula:
With is the ratio between the base units Gram (g) and Pound (lb).
To convert from Pound (lb) to Milligram (mg), use the following formula:
With is the ratio between the base units Gram (g) and Pound (lb).
To convert from Pound (lb) to Gram (g), use the following formula:
With is the ratio between the base units Gram (g) and Pound (lb).
To convert a measurement from pounds to kilograms, you use a simple formula.
This calculation is essential for switching between the British Imperial system, which uses pounds (lbs), and the metric system, which is used globally.
The key to the conversion is a specific number called the conversion factor.
By international agreement, one pound is equal to exactly 0.45359237 kg.
This gives us the formula:
For example, if you have 5 pounds, you would calculate:
This formula works because the pound, a common unit of measurement for mass (or weight), is officially defined by its relationship to the kilogram.
The kilogram (kg) is the base unit of mass in the International System of Units (SI).
So, when you need to make a pound (lbs) to kilogram (kg) conversion, you are simply multiplying by this official factor.
This also means that one kilogram is equal to the mass of 1 pound divided by 0.45359237 (which is approximately 2.2046 pounds).
To convert from Pound (lb) to Metric Tonne (mt), use the following formula:
With is the ratio between the base units Gram (g) and Pound (lb).
To convert from Pound (lb) to Ounce (oz), use the following formula:
To convert from Pound (lb) to Stone (st), use the following formula:
To convert from Pound (lb) to Ton (t), use the following formula:
The pound (lb) is a basic unit of mass and weight in the imperial system. It's widely used in the United States and elsewhere to measure things like groceries, body weight, and shipping.
Have you ever wondered why we write "lb" for pound? The abbreviation has ancient Roman roots.
It originates from the Roman unit of mass, the libra, which is Latin for "scales" or "balance."
The whole Roman phrase was libra pondo, meaning "a pound by weight." While English speakers adopted the pondo part, which became the word "pound," the abbreviation "lb" was retained from the phrase "libra."
Not all pounds are created equal. The two most common types are the avoirdupois pound and the troy pound.
To ensure global consistency, the pound is officially defined in relation to the kilogram (kg), the base unit of mass in the metric system.
Since 1959, one pound has been internationally defined as exactly 0.45359237 kilograms.
This agreement ensures that a pound in the US is the same as a pound in the UK. For everyday calculations, you can remember that 1 pound is about 0.45 kg.