Grams in a Pound
Free pounds-to-grams converter using the exact 453.59237 grams per pound formula. Custom calculations, quick common-value buttons, conversion chart, worked examples, and FAQs.
| Pounds (lb) | Grams (g) | Kilograms (kg) | Ounces (oz) |
|---|---|---|---|
| 0.1 | 45.36 | 0.0454 | 1.60 |
| 0.25 | 113.40 | 0.1134 | 4.00 |
| 0.5 | 226.80 | 0.2268 | 8.00 |
| 0.75 | 340.19 | 0.3402 | 12.00 |
| 1 | 453.59 | 0.4536 | 16.00 |
| 1.5 | 680.39 | 0.6804 | 24.00 |
| 2 | 907.18 | 0.9072 | 32.00 |
| 2.5 | 1,133.98 | 1.1340 | 40.00 |
| 3 | 1,360.78 | 1.3608 | 48.00 |
| 4 | 1,814.37 | 1.8144 | 64.00 |
| 5 | 2,267.96 | 2.2680 | 80.00 |
| 7.5 | 3,401.94 | 3.4019 | 120.00 |
| 10 | 4,535.92 | 4.5359 | 160.00 |
| 12.5 | 5,669.90 | 5.6699 | 200.00 |
| 15 | 6,803.89 | 6.8039 | 240.00 |
| 20 | 9,071.85 | 9.0718 | 320.00 |
| 25 | 11,339.81 | 11.3398 | 400.00 |
| 30 | 13,607.77 | 13.6078 | 480.00 |
| 40 | 18,143.69 | 18.1437 | 640.00 |
| 50 | 22,679.62 | 22.6796 | 800.00 |
| 75 | 34,019.43 | 34.0194 | 1,200.00 |
| 100 | 45,359.24 | 45.3592 | 1,600.00 |
| 150 | 68,038.86 | 68.0389 | 2,400.00 |
| 200 | 90,718.47 | 90.7185 | 3,200.00 |
| 250 | 113,398.09 | 113.3981 | 4,000.00 |
| 500 | 226,796.19 | 226.7962 | 8,000.00 |
| 1000 | 453,592.37 | 453.5924 | 16,000.00 |
How Many Grams Are in a Pound?
1 pound = 453.59237 grams (exactly). This is the international avoirdupois pound, defined by international agreement in 1959 and used in the United States, the United Kingdom, and most English-speaking countries.
Pounds to Grams Formula
Worked Examples
- 0.5 lb = 0.5 × 453.59237 = 226.80 g
- 1 lb = 1 × 453.59237 = 453.59 g
- 2 lb = 2 × 453.59237 = 907.18 g
- 5 lb = 5 × 453.59237 = 2,267.96 g
- 10 lb = 10 × 453.59237 = 4,535.92 g
- 500 g = 500 ÷ 453.59237 = 1.1023 lb
- 1,000 g (1 kg) = 1,000 ÷ 453.59237 = 2.2046 lb
Common Uses
- Cooking & Baking — convert US recipes (cups, pounds) to metric grams.
- Shipping — declare parcel weight in grams when only pounds are on the label.
- Fitness & Nutrition — match macros from US food labels (per ounce/pound) to metric tracking apps.
- Education — quick reference for physics, chemistry, biology lab work.
- Travel — luggage limits posted in kilograms when your scale shows pounds.
Frequently Asked Questions
Why 453.59237 grams in a pound?
On July 1, 1959, the United States, United Kingdom, Canada, Australia, New Zealand, and South Africa signed the International Yard and Pound Agreement, which defined the international avoirdupois pound as exactly 453.59237 grams. Before that, slightly different definitions were used in different countries.
Is "pound" the same in the US and UK?
For most everyday purposes, yes — both use the international avoirdupois pound. The UK historically also used the stone (1 stone = 14 lb), but the conversion to grams is identical.
How many grams in a pound of butter or sugar?
A pound of any substance weighs 453.59237 grams. Weight is independent of what the substance is — a pound of feathers and a pound of lead both weigh 453.59 grams. What changes is the volume: a pound of feathers takes up much more space.
How many pounds in 1 kilogram?
1 kg = 1,000 g ÷ 453.59237 = 2.20462 lb. So 1 kg is about 2.2 pounds, or 2 pounds and 3.27 ounces.
What about troy pounds (used for precious metals)?
A troy pound is different — 1 troy pound = 373.2417 g (not 453.59 g). It's only used for gold, silver, gemstones, and gunpowder. For everyday weights (food, shipping, fitness), always use the avoirdupois pound.
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