How to convert ounces to pounds
To convert a measurement in ounces to pounds, multiply the value by 0.0625. The conversion factor comes from the relationship between both units and the kilogram.
For example, to convert 5 oz to pounds: 5 × 0.0625 = 0.3125 lb.
What is a ounce?
An ounce is an imperial and US customary unit of mass equal to 1/16 of a pound or exactly 28.349523125 grams. The avoirdupois ounce descends from the Roman 'uncia' (one twelfth). It is distinct from the troy ounce used for precious metals, which is heavier at about 31.1 grams.
Common uses of ounces include: Food portions and recipe ingredients in the US; Postal and letter weights; Packaged goods net weight (cereal, snacks); Baby birth weights in the US.
What is a pound?
A pound is an imperial and US customary unit of mass equal to 16 ounces or exactly 0.45359237 kilograms. The pound derives from the Roman 'libra' (hence the symbol 'lb'). The international avoirdupois pound was fixed at exactly 0.45359237 kg by the 1959 international yard and pound agreement between English-speaking nations.
Common uses of pounds include: Body weight in the US and UK; Grocery and produce pricing in the US; Bodybuilding and weightlifting loads; Shipping weights for parcels in the US.
Ounces to pounds worked examples
Here are some common values converted:
1 oz = 0.0625 lb 5 oz = 0.3125 lb 10 oz = 0.625 lb 50 oz = 3.125 lb 100 oz = 6.25 lb
Frequently asked questions
How many pounds are in one ounce?
One ounce (oz) equals 0.0625 pounds (lb). Multiply any value in ounces by 0.0625 to convert to pounds.
How do I convert ounces to pounds?
Multiply the value in ounces by 0.0625. For example, 5 oz × 0.0625 = 0.3125 lb.
How do I convert pounds to ounces?
Multiply the value in pounds by 16, or divide by 0.0625. Use the swap button on the converter above to reverse the direction.
Is the ounce to pound conversion exact?
Yes. Since 1959 the international pound is defined as exactly 0.45359237 kg, so all weight conversions between metric and avoirdupois units use exact factors.
What is the formula for ounces to pounds?
The formula is: lb = oz × 0.0625. This comes from the definition of both units relative to the kilogram.