Pounds to Grams (lb to g) Converter – 0.5, 1, 2, 5 lb in grams
Convert pounds to grams and grams to pounds instantly.
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Pounds to Grams (lb to g) – Instant Calculator
Pounds (lb)
→
Grams (g)
Common Conversion Examples
0.5 lb = 226.796185 g
0.5 lb = 226.796185 g
1 lb = 453.59237 g
1 lb = 453.59237 g
2 lb = 907.18474 g
2 lb = 907.18474 g
5 lb = 2267.96185 g
5 lb = 2267.96185 g
Pounds to Grams: Definition, History, Uses, and Examples
Definition
A pound (lb) in the everyday avoirdupois system equals 453.59237 grams. A gram (g) is the SI unit commonly used for food, science, and trade. The pounds to grams formula is:
Grams (g) = Pounds (lb) × 453.59237
Origin or History
The modern pound comes from historical European systems, standardized as the international avoirdupois pound. The gram is part of the metric system created during the French Revolution and formalized as SI.
Current Use
- Nutrition & labels: convert lb to g for precise serving sizes.
- Recipes & cooking: turn package weights into grams for metric recipes.
- Shipping & e‑commerce: convert pounds to grams for weight tiers and customs declarations.
- Science & labs: grams are widely used for small mass measurements.
Examples
| Pounds (lb) | Grams (g) | Example Use |
|---|---|---|
| 0.5 lb | 226.796 g | Half-pound pack |
| 1 lb | 453.592 g | One pound of produce |
| 2 lb | 907.185 g | Small parcel |
| 5 lb | 2267.962 g | Bulk ingredient |
Step-by-step example
Convert 2.5 lb to grams: 2.5 × 453.59237 = 1133.9809 g.
Frequently Asked Questions
How many grams are in a pound?
Exactly 453.59237 grams.
Is lb to g useful for nutrition labels?
Yes. Many labels list grams; convert from pounds to get metric values.
How do I convert grams back to pounds?
Divide grams by 453.59237.