Back to Weight

pound (lb) → ounce (oz)

Instant conversion - enter value to see result

Use our free online converter to convert between units instantly. Enter any value in the field above to get accurate results. No signup or download required—all conversions run in your browser. Our calculator uses standard conversion factors for reliability.

0
lb=oz
0.01=0.16
0.1=1.6
1=16
2=32
3=48
5=80
10=160
20=320
50=800
100=1,600
1000=16,000

Popular conversions

More conversions in this category

Brief explanation: pound to ounce

Kilogram is the base unit of mass in the metric system. Pound ≈ 0.453 kg, ounce = 28.35 g. Ton = 1000 kg. Weight and mass are often used interchangeably in everyday contexts. The metric system (kg, g, mg) is used globally. Pounds and ounces are common in the US and UK. For cooking, grams are precise; for body weight, kg or lb are standard.

Related converters

Common conversion examples: pound to ounce

Reference values for quick comparison. Use the converter above for any amount.

  • 1 pound=16 ounce
  • 10 pound=160 ounce
  • 100 pound=1,600 ounce

About the Units

pound (lb)

Definition: A pound (lb) is a unit of mass in the imperial and US customary systems. The international avoirdupois pound equals exactly 0.45359237 kilograms, or 16 ounces. It is the primary weight unit in the US.
History: The pound has Roman origins (libra). The avoirdupois pound of 16 ounces became standard in England. The international pound was standardized in 1959 for consistency between the US and UK.
Current use: Pounds are used for body weight, produce, and meat in the US and UK. Shipping weights and gym equipment often use pounds. Most of the world uses kilograms for weight.

ounce (oz)

Definition: An ounce (oz) is a unit of mass equal to 1/16 of a pound. One avoirdupois ounce equals approximately 28.35 grams. It is used for small weights in the imperial and US systems.
History: The ounce derives from the Roman uncia (one twelfth). The avoirdupois ounce became standard for commerce. Troy ounces are used for precious metals (1 troy oz ≈ 31.1 g).
Current use: Ounces are used for food portions, postal rates, and beverage sizes in the US. Baby weight and small package weights use ounces. The metric equivalent is grams.

Sources

Conversion factors and unit definitions follow international standards. For authoritative references, see: