Pounds to Ounces (lb to oz) Converter
1 pound equals 16 ounces (oz) — multiply pounds by 16 to convert. The avoirdupois pound is defined as exactly 16 ounces, making this one of the cleanest weight conversions.
The formula
To convert pounds to ounces, multiply by the exact factor:
oz = lb × 16
For example, 2.5 lb × 16 = 40 oz. To reverse it, divide by 16 (or multiply by 0.0625).
Conversion table
| Pounds (lb) | Ounces (oz) |
|---|---|
| 1 | 16 |
| 2 | 32 |
| 3 | 48 |
| 5 | 80 |
| 10 | 160 |
| 25 | 400 |
| 50 | 800 |
| 100 | 1600 |
| 500 | 8000 |
| 1000 | 16000 |
How to convert online
- Type the number of pounds in the first box.
- Read the ounce result instantly in the second box.
- Enter an oz value to convert back the other way.
Use the Pound to Ounce Converter — free and instant in your browser.
Where this conversion is used
Pounds to ounces is a kitchen and grocery staple in the US, used for recipe portions, meat and produce weights, and packaging labels. It also appears in postage, where mail rates step up in ounces, and in boxing and sports where weights are quoted in both units.
FAQ
How many ounces are in a pound?
One pound equals 16 ounces. So 5 pounds is 80 ounces.
What is the formula to convert pounds to ounces?
Multiply the pound value by 16: oz = lb × 16.
How do I convert ounces back to pounds?
Divide by 16, or multiply by 0.0625. For example, 160 oz ÷ 16 = 10 pounds.
Is the conversion exact?
Yes. A pound is defined as exactly 16 avoirdupois ounces, so there is no rounding.
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