How pounds to grams are calculated
A pound is a fixed number of grams, so the conversion is one multiplication or one division.
grams = pounds × 453.59237 (1 lb = 453.59237 g)
- The international pound is defined as exactly 453.59237 grams, so the answer is exact rather than rounded.
- Multiply your pounds by 453.59237 for grams, or divide your grams by 453.59237 to get pounds.
- 1 lb is 453.59 g, and 2 lb is 907.18 g.
- A kilogram is 1,000 grams, so 1 lb is 0.4536 kg and 1 kg is 2.2046 lb.
Worked example — 2.5 lb is 2.5 × 453.59237 = 1,133.98 g, which is 1.134 kg, 40 oz, or 2 lb 8 oz.
Common pounds converted
| Pounds | Grams | Kilograms | Ounces |
|---|---|---|---|
| 0.25 lb | 113.4 g | 0.1134 kg | 4 oz |
| 0.5 lb | 226.8 g | 0.2268 kg | 8 oz |
| 1 lb | 453.59 g | 0.4536 kg | 16 oz |
| 2 lb | 907.18 g | 0.9072 kg | 32 oz |
| 3 lb | 1,360.78 g | 1.3608 kg | 48 oz |
| 5 lb | 2,267.96 g | 2.268 kg | 80 oz |
| 10 lb | 4,535.92 g | 4.5359 kg | 160 oz |
| 25 lb | 11,339.81 g | 11.3398 kg | 400 oz |
| 50 lb | 22,679.62 g | 22.6796 kg | 800 oz |
| 100 lb | 45,359.24 g | 45.3592 kg | 1,600 oz |
Swipe the table sideways to see the rest.
To go the other way, switch the converter above to grams → Pounds.
Things to consider
- Kitchen scales read grams, so convert a recipe's pound amounts once and then weigh in grams.
- A pound of butter is 454 g, and most packets print 454 g because it is one pound to the nearest gram.
- Luggage and postal limits are usually in kilograms, so convert pounds to kilograms before you pack.
- Weight ounces and fluid ounces are different. Ounces of weight convert to grams; fluid ounces measure volume.
Frequently asked questions
How many grams is a pound?
453.59237 grams exactly. One ounce is 28.35 g.
Is 500 grams the same as 1 pound?
No. 500 g is 1.1023 lb, so a pound is the lighter 453.59 g.
How do I convert grams to pounds?
Divide your grams by 453.59237, or switch this converter to grams → Pounds.
What is 1 kg in pounds?
2.2046 lb, because 1,000 ÷ 453.59237 = 2.2046.
Why does a food label say 454 g?
That is one pound rounded to whole grams. Packets print 454 g because it is the same weight to the nearest gram.
Results are estimates for general information only, not financial, medical or professional advice.