Grams and pounds
The gram is one thousandth of a kilogram. Recipes, nutrition labels, postage and small parcels use grams.
The avoirdupois pound is exactly 0.45359237 kilograms (1959 agreement) and contains 16 ounces. Body weight, food and product weights in the US, and body weight alongside stone in the UK, use pounds.
Worked example
Convert 500 g: 500 × 0.002204622622 = 1.102311311, so 500 grams is 1.102311311 pounds. Likewise 100 g = 0.2204622622 lb.
Estimating in your head
Divide by 450 for a quick figure; it is off by about 0.8%. For 500 g that gives 1.11 lb, against 1.10231 exactly.
Going the other way
To convert pounds to grams, divide by 0.002204622622 (or multiply by 453.59237). The swap button between the boxes opens that page.
How this works
lb = g × 0.002204622622
1 g = 0.001 kg and 1 lb = 0.45359237 kg, both by definition, so the factor is their ratio: 0.002204622622 (rounded here; the page uses the full value). Results drop binary floating-point noise beyond 15 significant digits and display at the precision you choose (6 significant figures by default). Copy result copies the full value.
Frequently asked
How many pounds are in a gram?
1 gram = 0.002204622622 pounds. The factor is exact by definition but has endless decimals, so it is shown rounded; the page uses the full value.
How do I convert grams to pounds?
Multiply by 0.002204622622. For example, 100 g × 0.002204622622 = 0.2204622622 lb.
What is 1,000 g in pounds?
1,000 g = 2.204622622 lb. The table next to the converter lists more common values.
Is the result rounded?
Only on screen. The page computes with the exact definitions and removes floating-point noise past 15 significant digits; pick 3 to 12 significant figures, or use Copy result for the full value.
Sources
- NIST SP 811 Appendix B.8 — Factors for units listed alphabetically
- Federal Register 59-5442 (1959) — Refinement of values for the yard and the pound
- Wikipedia — Avoirdupois system
Reviewed Oct 17, 2026 · test vectors fixtures/units/mass/grams-to-lbs/