Convert weight and mass units — kilograms, pounds, ounces, grams, tons, stones.
| Unit | Name | Value |
|---|---|---|
| kg | Kilogram | 0.453592 |
| g | Gram | 453.592 |
| mg | Milligram | 453592 |
| t | Metric Ton | 0.000453592 |
| oz | Ounce | 16 |
| st | Stone | 0.071428549 |
The Pound (lb) and the Gram (g) are both units of weight & mass. Converting between them is straightforward using the formula above.
Formula: 1 lb = 453.592 g
This converter uses internationally recognized conversion factors. All calculations are performed client-side in your browser — no data is sent to any server.
| Pound (lb) | Gram (g) | Real-world context |
|---|---|---|
| 0.1 lb | 45.3592 g | |
| 1 lb | 453.592 g | loaf of bread |
| 5 lb | 2267.96 g | bag of flour |
| 10 lb | 4535.92 g | small dog |
| 100 lb | 45359.2 g | child |
1 pound (lb) equals exactly 453.592 grams (g). Use the formula: lb × 453.592 = g.
To convert pounds to grams, multiply your value in pounds by 453.592. For example, 5 lb × 453.592 = 2267.96 g.
100 pounds = 45359.2 grams. Calculation: 100 × 453.592 = 45359.2.
To convert grams back to pounds, divide by 453.592 (or multiply by 0.00220462). Example: 10 g ÷ 453.592 = 0.02204624 lb.
Yes. This converter uses the internationally recognised exact conversion factor: 1 lb = 453.592 g. All calculations are performed in your browser with no rounding until display.
10 pounds = 4535.92 grams. Simply multiply by 453.592.
Converting pounds to grams is commonly needed for everyday tasks like cooking recipes, body weight tracking, shopping internationally, or shipping parcels where one system uses lb and another uses g.
The pound (lb) is the primary unit of mass in the US customary and British imperial systems, equal to exactly 453.59237 grams since the International Yard and Pound Agreement of 1959. It is subdivided into 16 ounces. The abbreviation "lb" comes from the Latin libra (scales/balance), while "pound" derives from Latin pondus (weight).
The gram (g) is a unit of mass in the metric system equal to one-thousandth of a kilogram (0.001 kg). While the kilogram is the SI base unit, the gram is the practical everyday unit for small masses in cooking, pharmacy, chemistry, and nutrition labelling. The word derives from Late Latin gramma (small weight), itself from Greek.
The pound traces its origins to ancient Rome's libra pondo (pound weight, ~329 g). Various standards existed in medieval Europe — Troy, Tower, and merchant pounds — until the avoirdupois pound emerged in 13th–14th century England for general trade. The British Weights and Measures Act 1878 formalised it. The modern definition (453.59237 g) was fixed by the US, UK, Australia, Canada, New Zealand, and South Africa in 1959.
Interesting fact: The word "pound sterling" originally meant one pound (12 troy ounces) of sterling silver. Today's British pound currency takes its name from the unit of mass, not the other way around.
Defined in 1795 by the French Academy of Sciences as the mass of one cubic centimetre of pure water at 4 °C — this made 1 mL of water weigh almost exactly 1 gram. The gram was the practical base of early metric calculations before the kilogram took over as SI base unit in 1875. The relationship 1 mL water ≈ 1 g is still a useful approximation in cooking and chemistry.
Interesting fact: A standard large paperclip weighs about 1 gram. The gram forms the basis for milligram (mg), microgram (μg), and tonne (10⁶ g) through SI prefixes.