Formula
1 lb = 453.59237 g
grams = pounds × 453.59237
How to convert
- Take the weight in pounds.
- Multiply by 453.59237 grams per pound.
- Round the gram result only as much as your scale or recipe requires.
Grams are useful for smaller quantities where kilograms would produce a small decimal. Food portions, ingredient labels, parcel contents, and product weights often use grams.
A calculator can show more digits than a household scale can measure. Match your rounding to the precision of the original weight.
Practical examples
0.5 lb × 453.59237 = 226.796185 g1 lb = 453.59237 g5 lb × 453.59237 = 2,267.96185 g
Conversion table
| Pounds (lb) | Grams (g) |
|---|---|
| 0.25 | 113.398093 |
| 0.5 | 226.796185 |
| 1 | 453.59237 |
| 2 | 907.18474 |
| 5 | 2,267.96185 |
| 10 | 4,535.9237 |
| 25 | 11,339.80925 |
Reference standard
The calculations follow the exact international avoirdupois pound relationship published in NIST Handbook 44, Appendix B. The BIPM kilogram reference describes the SI mass unit used on the metric side.
See how PoundsCalculator handles constants, validation, and rounding.
Questions people ask
Is one pound 454 grams?
454 g is a practical whole-gram rounding. The exact conversion is 453.59237 g.
How many grams are in half a pound?
Half a pound is exactly 226.796185 grams.
Should a recipe use the full decimal result?
Usually not. Round to a precision your kitchen scale can actually measure.