1 lb = 453.592 g (pound → gram)
1 lb = 453.592 g
1 pound equals 453.592 grams. To convert pounds to grams, multiply the pound value by 453.592. For quick reference: 1 lb = 453.592 g, 5 lb = 2267.96 g, 10 lb = 4535.92 g, 100 lb = 45359.2 g.
Grams = Pounds × 453.592Pounds to grams multiplies by 453.59237. A 1 lb pack of butter is 453.6 g; a 3 lb chicken is 1360.8 g. The factor is exact via the 1959 international pound. This conversion bridges US recipe weights and metric scales; for precision baking, carry the full factor rather than the rounded 454 g, which introduces a 0.09 % error that compounds across a multi-ingredient bake.
Fitness and supplement labelling in the US states serving sizes and dumbbell increments in pounds, but ingredient dosing on the manufacturing side happens in grams — a 1 lb protein tub is 453.6 g, a 2.5 lb dumbbell increment is 1,134 g, and a 0.25 lb (4 oz) scoop is 113.4 g. Because the exact factor (453.59237) has a long decimal tail, manufacturing spec sheets round to the nearest gram, which is precise enough for anything short of pharmaceutical dosing.
Start with your value in pounds.
Multiply the pound value by 453.592. This is the exact conversion factor from pounds to grams.
The product is your value in grams. For example, 5 lb × 453.592 = 2267.96 g.
The exact factor from pounds to grams is 453.592.
Grams = Pounds × 453.592
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Pounds (lb) | Grams (g) |
|---|---|
| 0.1 lb | 45.359 g |
| 0.25 lb | 113.4 g |
| 0.5 lb | 226.8 g |
| 1 lb | 453.59 g |
| 1.5 lb | 680.39 g |
| 2 lb | 907.18 g |
| 2.5 lb | 1134 g |
| 3 lb | 1360.8 g |
| 4 lb | 1814.4 g |
| 5 lb | 2268 g |
| 6 lb | 2721.6 g |
| 7 lb | 3175.1 g |
| 8 lb | 3628.7 g |
| 9 lb | 4082.3 g |
| 10 lb | 4535.9 g |
| 12 lb | 5443.1 g |
| 15 lb | 6803.9 g |
| 18 lb | 8164.7 g |
| 20 lb | 9071.8 g |
| 25 lb | 11340 g |
| 30 lb | 13608 g |
| 35 lb | 15876 g |
| 40 lb | 18144 g |
| 45 lb | 20412 g |
| 50 lb | 22680 g |
| 60 lb | 27216 g |
| 70 lb | 31751 g |
| 75 lb | 34019 g |
| 80 lb | 36287 g |
| 90 lb | 40823 g |
| 100 lb | 45359 g |
| 120 lb | 54431 g |
| 125 lb | 56699 g |
| 150 lb | 68039 g |
| 175 lb | 79379 g |
| 180 lb | 81647 g |
| 200 lb | 90718 g |
| 225 lb | 102058 g |
| 250 lb | 113398 g |
| 275 lb | 124738 g |
| 300 lb | 136078 g |
| 350 lb | 158757 g |
| 400 lb | 181437 g |
| 450 lb | 204117 g |
| 500 lb | 226796 g |
| 600 lb | 272155 g |
| 750 lb | 340194 g |
| 1000 lb | 453592 g |
| 2000 lb | 907185 g |
| 5000 lb | 2267962 g |
A loaf of bread is about 1 lb. A standard bag of sugar is 5 lb. In grams, that gives you: 1 lb = 453.592 g, 10 lb = 4535.92 g, 100 lb = 45359.2 g.
The international avoirdupois pound (lb) is a unit of mass in the imperial and US customary systems, defined as exactly 0.45359237 kilograms since the 1959 international yard and pound agreement. It is the everyday unit for body weight, groceries, and shipping in the United States. Sixteen ounces make one pound; fourteen pounds make one stone in British usage.
The gram (g) is a metric unit of mass equal to one-thousandth of a kilogram. It is the everyday unit for food labeling, postage, jewelry, and laboratory measurements. The 2019 SI redefinition fixed the kilogram (and therefore the gram) in terms of Planck's constant, ending more than a century of dependence on a physical prototype.
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Common values for pounds → grams with the exact answer already worked out.
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