Formula
1 lb = 16 oz
ounces = pounds × 16
How to convert
- Write the weight in pounds, including any decimal part.
- Multiply by 16.
- Label the result in ounces (oz).
Pounds and ounces belong to the same avoirdupois weight system. This makes the conversion especially useful for package weights, food portions, and any scale that reports decimal pounds.
For example, 2.5 lb is not 2 lb 5 oz. The decimal half-pound equals 8 oz, so 2.5 lb equals 40 oz in total.
Practical examples
0.5 lb × 16 = 8 oz2.5 lb × 16 = 40 oz12 lb × 16 = 192 oz
Conversion table
| Pounds (lb) | Ounces (oz) |
|---|---|
| 0.25 | 4 |
| 0.5 | 8 |
| 1 | 16 |
| 2 | 32 |
| 2.5 | 40 |
| 5 | 80 |
| 10 | 160 |
| 25 | 400 |
Questions people ask
Are there exactly 16 ounces in a pound?
Yes, for avoirdupois weight. One pound equals exactly 16 avoirdupois ounces.
How many ounces is half a pound?
Half a pound is 8 ounces.
Is a fluid ounce the same thing?
No. This calculator uses ounces of weight. A fluid ounce measures volume.