Why Convert Ounces to Pounds?
Converting between ounces (oz) and pounds (lb) is one of the most common mass conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert oz to lb saves time and prevents errors.
Mass conversions between oz and lb come up constantly in everyday life. International travelers need to convert luggage weight limits — airlines typically allow 23 kg (≈50.7 lb) for checked bags and 7-10 kg for carry-on. In fitness, gym equipment in the US uses pounds while most of the world uses kilograms. Cooking recipes from different countries require converting between grams, ounces, and pounds for accurate measurements.
How to Convert Ounces to Pounds
To convert ounces to pounds, use the following formula:
lb = oz × 0.0625
Example: 1 oz = 0.0625 lb
For example, 5 oz = 0.3125 lb, 10 oz = 0.625 lb, and 100 oz = 6.25 lb. Our calculator above performs this conversion instantly with full precision — no rounding errors.
Common Use Cases
- 8 oz steak (half a pound): 8 oz = 0.5 lb
- 32 oz water bottle (2 pounds): 32 oz = 2 lb
- One pound (16 oz) of deli meat: 16 oz = 1 lb
- Quarter-pound burger (4 oz): 4 oz = 0.25 lb
Common Mistakes to Avoid
- Confusing mass and weight: In everyday use, "weight" and "mass" are interchangeable, but in science they differ. This converter handles mass units.
- Pound ambiguity: The avoirdupois pound (lb, used for everyday weight) differs from the troy pound (used for precious metals). This converter uses avoirdupois.
- Rounding errors in cooking: When converting oz to lb for recipes, round to the nearest practical measurement (e.g., nearest 5g or ¼ oz).
Pro Tips
- Memorize the factor: 1 oz = 0.0625 lb. For quick mental math, remember this base conversion.
- Quick reference: 5 oz = 0.3125 lb · 10 oz = 0.625 lb · 25 oz = 1.5625 lb · 50 oz = 3.125 lb · 100 oz = 6.25 lb
- Bookmark this page: Save this converter for instant access. It works offline once loaded — no internet needed.
Ounces to Pounds Conversion Table
| oz | lb |
|---|---|
| 0.01 oz | 0.000625 lb |
| 0.1 oz | 0.00625 lb |
| 0.5 oz | 0.03125 lb |
| 1 oz | 0.0625 lb |
| 2 oz | 0.125 lb |
| 5 oz | 0.3125 lb |
| 10 oz | 0.625 lb |
| 20 oz | 1.25 lb |
| 50 oz | 3.125 lb |
| 100 oz | 6.25 lb |
| 500 oz | 31.25 lb |
| 1000 oz | 62.5 lb |
All values in this table are mathematically exact per NIST SP 811.