1 Pound equals 453.592 Grams.
| Pound (lb) | Gram (g) |
|---|---|
| 0.001 lb | 0.453592 g |
| 0.01 lb | 4.53592 g |
| 0.1 lb | 45.3592 g |
| 1 lb | 453.592 g |
| 2 lb | 907.185 g |
| 5 lb | 2,267.96 g |
| 10 lb | 4,535.92 g |
| 25 lb | 11,339.8 g |
| 50 lb | 22,679.6 g |
| 100 lb | 45,359.2 g |
| 500 lb | 226,796 g |
| 1,000 lb | 453,592 g |
To convert Pounds to Grams, multiply the value by 453.592. This factor comes from the ratio of the two units' definitions: one Pound equals 453.592 Grams.
For example: 1 Pound = 453.592 Grams, and 10 Pounds = 4,535.92 Grams.
To convert in the reverse direction — from Grams to Pounds — multiply by 0.00220462.
The pound (lb) is the primary unit of mass in the US customary system and was historically the basis of both the avoirdupois and troy weight systems. The modern international pound is defined as exactly 0.45359237 kilograms. The abbreviation "lb" comes from the Latin "libra pondo" (a pound by weight), the same root that gives British currency its name — the pound sterling.
In the United States, pounds are used for body weight, food packaging (alongside ounces), livestock, and industrial loads. The pound is also the unit for measuring force in US engineering contexts: pounds-force (lbf) is a common unit in structural engineering, and engine output is sometimes given in horsepower alongside a torque figure in pound-feet (lb·ft). Body weight in the US is almost always communicated in pounds rather than kilograms.
One pound equals 16 avoirdupois ounces, 453.6 grams, or approximately 0.454 kg. A loaf of bread weighs about one pound; a gallon of water weighs about 8.34 pounds; and a typical bag of flour is sold in 5-pound increments. Globally, the pound still appears in British body-weight discussions, international boxing weight classes, and some agricultural contexts, though the metric system has otherwise displaced it throughout science and most commerce.
The gram is one thousandth of a kilogram and the standard unit for everyday small masses in the metric world. A paperclip weighs about 1 gram; a standard die (for board games) weighs about 4 grams; a US quarter coin weighs exactly 5.67 grams; and a teaspoon of sugar is about 4 grams. The gram is familiar from food packaging worldwide, where ingredient quantities and serving sizes are listed in grams.
The gram was originally defined in 1795 as the mass of one cubic centimeter of water at 4°C (the temperature at which water reaches its maximum density). This elegant link between mass and volume meant that a liter of water weighed exactly one kilogram, and a milliliter weighed exactly one gram — relationships still useful for quick mental calculations in cooking and chemistry.
In gemology, the gram stands alongside the carat (0.2 grams) for weighing precious stones and the troy ounce (31.1 grams) for precious metals. In chemistry and pharmacology, the gram is the standard for expressing concentrations (grams per liter, g/L) and reaction quantities. Nutritionists work almost entirely in grams when discussing carbohydrates, fats, proteins, and fiber — making the gram perhaps the most broadly encountered scientific unit in everyday consumer life.
1 Pound equals 453.592 Grams.
To convert Pounds to Grams, multiply by 453.592. For example, 0.1 Pounds = 45.3592 Grams.
1 Gram equals 0.00220462 Pounds.