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Pounds to Ounces converter
Enter a number, fraction, power, π, or arithmetic expression.1 lb = 16 oz ounces = pounds × 16
Ready for local conversionPounds to Ounces formula
ounces = pounds × 16
1 pound = exactly 16 avoirdupois ounces
The avoirdupois system defines exactly 16 ounces in one pound, so no approximation is needed.
How to convert Pounds to Ounces
Multiply pounds by 16. For a mixed value such as 3 lb 4 oz, convert the pounds to 48 ounces and add the existing 4 ounces for a total of 52.
Example calculation
A 2.5 lb item weighs exactly 40 oz: 2.5 × 16 = 40.
2.5 lb = 40 oz
When this conversion is useful
This conversion is practical for parcel labels, recipe scaling, newborn weights, food portions, and inventory recorded entirely in ounces.
Common Pounds to Ounces conversions
| Pounds (lb) | Ounces (oz) |
|---|---|
| 0.5 | 8 |
| 1 | 16 |
| 2 | 32 |
| 2.5 | 40 |
| 5 | 80 |
| 10 | 160 |
Pounds to Ounces FAQ
There are exactly 16 avoirdupois ounces in one pound.
Multiply the whole pounds by 16, then add the separate ounce amount.
No. Troy pounds contain 12 troy ounces. This page uses the everyday avoirdupois system with 16 ounces per pound.