Ounces calculator


The ounce is a unit of measurement with a rich history and varied applications in both mass and volume. Its origins trace back to the Latin term uncia, meaning "one-twelfth part," which was used in the Roman system to denote one-twelfth of a pound or foot. This concept evolved over time, leading to the modern ounce used today.

Types of Ounces

There are primarily two types of ounces in use:

  1. Avoirdupois Ounce: Commonly used in the United States for measuring body weight and packaged foods, the avoirdupois ounce is defined as exactly 28.349523125 grams.
  2. Troy Ounce: Used predominantly in the measurement of precious metals like gold and silver, the troy ounce equals approximately 31.1034768 grams.

Fluid Ounce

It's important to distinguish between an ounce as a unit of mass and a fluid ounce, which measures volume. A fluid ounce represents the volume occupied by a liquid weighing one ounce.In the U.S. customary system, a fluid ounce is approximately 29.5735 milliliters, while in the British imperial system, it is about 28.4131 milliliters.

Current Usage in Everyday Life

In contemporary settings, ounces are prevalent in various aspects:

  • Culinary Measurements: Recipes often specify ingredients in ounces, necessitating precise measurements for successful outcomes.
  • Nutrition Labeling: Food packaging frequently lists product weights in ounces, aiding consumers in understanding portion sizes and nutritional content.
  • Postal Services: Mail items are commonly weighed in ounces to determine postage costs.

Interesting Fact

The abbreviation "oz" for ounce originates from the Italian word onza, reflecting the historical influence of various languages on measurement terms.

Understanding the distinctions and applications of the ounce enhances accuracy in tasks ranging from cooking to mailing, highlighting its enduring relevance in daily life.

Ounces to uther units conversion

Ounces (oz)Kilograms (kg)Grams (g)Metric Tons (t)Pounds (lbs)Milligrams (mg)
1 0.0283495 28.3495 0.0000283495 0.0625 28,349.5
2 0.056699 56.699 0.000056699 0.125 56,699
5 0.1417475 141.7475 0.0001417475 0.3125 141,747.5
10 0.283495 283.495 0.000283495 0.625 283,495
16 0.453592 453.592 0.000453592 1 453,592
32 0.907184 907.184 0.000907184 2 907,184
64 1.81437 1,814.37 0.00181437 4 1,814,370

Ounces conversion calculator