Pound to OunceConverter
Instantly convert Pound (lb) to Ounce (oz). Free, accurate, and easy to use.
How to Convert Pound to Ounce
To convert Pound (lb) to Ounce (oz), multiply your value by 16.
Example: 5 lb × 16 = 80 oz
What is a Pound?
The pound is the primary unit of mass in the US customary and imperial systems, equal to 16 avoirdupois ounces or exactly 0.45359237 kilograms. Its name derives from the Latin 'libra pondo' (a pound weight), and its symbol 'lb' comes from 'libra.' Body weight in the United States and parts of the UK are commonly expressed in pounds and ounces. One pound of butter is the standard package size in American grocery stores.
What is a Ounce?
The avoirdupois ounce equals 1/16 of a pound or approximately 28.3495 grams, used in the United States for food products, postal weights, and retail measurements. It differs from the troy ounce (31.1035 g) used for precious metals such as gold and silver. The word 'ounce' comes from the Latin 'uncia,' meaning one twelfth (its fraction in the earlier Roman system). A standard slice of sandwich bread weighs approximately 28–30 grams, or about 1 ounce.
Pound to Ounce Conversion Table
| Pound (lb) | Ounce (oz) |
|---|---|
| 0.001 lb | 0.016 oz |
| 0.01 lb | 0.16 oz |
| 0.1 lb | 1.6 oz |
| 0.5 lb | 8 oz |
| 1 lb | 16 oz |
| 2 lb | 32 oz |
| 5 lb | 80 oz |
| 10 lb | 160 oz |
| 20 lb | 320 oz |
| 50 lb | 800 oz |
| 100 lb | 1600 oz |
| 200 lb | 3200 oz |
| 500 lb | 8000 oz |
| 1000 lb | 16000 oz |
| 5000 lb | 80000 oz |
| 10000 lb | 160000 oz |
| 50000 lb | 800000 oz |
| 100000 lb | 1600000 oz |
| 1000000 lb | 16000000 oz |
| 1000000000 lb | 1.6000e+10 oz |
Frequently Asked Questions
How do I convert Pound to Ounce?
Multiply the Pound value by 16. Formula: oz = lb × 16. Example: 10 lb = 160 oz.
How many Ounce are in one Pound?
One Pound (lb) equals 16 Ounce (oz).
How many Pound are in one Ounce?
One Ounce (oz) equals 0.0625 Pound (lb).
What is the exact conversion factor from Pound to Ounce?
The conversion factor is 16. Multiply any lb value by this number to get oz. For the reverse, multiply by 0.0625.
How do I convert Ounce back to Pound?
Divide by 16, or equivalently multiply by 0.0625. Formula: lb = oz ÷ 16.
Is the Pound-to-Ounce conversion internationally standardized?
Yes. Both units are defined by international standards (SI or the international yard/pound agreement), so the conversion factor 16 is exact and universally agreed upon.