Enter ounces below to convert to other units, or vice versa.
Ounce, a unit of measurement commonly used for both weight and volume, is a unit of weight and volume in the English and US customary systems of measurement. It is abbreviated as "oz".
The ounce is an ancient unit, dating back to ancient Rome. Its name comes from the Latin word "uncia", meaning "one-twelfth". This is because the Roman pound was divided into 12 ounces.
There are different types of ounces, including:
Avoirdupois ounce: Used to measure weight, the avoirdupois ounce is the ounce commonly used in the US and in the English system of measurement. It is often used to measure the weight of food, medicine, and other relatively light objects. In the International System of Units (SI), 1 ounce is equal to approximately 28.349 grams.
Fluid ounce (Abbreviation: fl oz): Used to measure the volume of liquids, the fluid ounce is commonly used in the US and in the English system of measurement. In the US, 1 fluid ounce is equal to approximately 29.573 milliliters. It is widely used in cooking and baking to measure liquid ingredients in recipes, such as water, milk, oil, etc.
Troy ounce (Abbreviation: oz t): Used to measure precious metals, the troy ounce is equal to 31.1034768 grams. It is commonly used in the jewelry industry and in the trading of precious metals.
It's important to note that there is a slight difference between the US ounce and the UK ounce. Our ounce is the US customary ounce.
| Units | Ounces to... | ...to Ounces |
|---|---|---|
| Gram | 28.349523 g | 0.035274 oz |
| Pound | 0.0625 lb | 16 oz |
| Kilogram | 0.028349 kg | 35.273962 oz |
| Milligram | 28349.523125 mg | 0.000035 oz |
| Troy Ounce | 0.911458 oz t | 1.097142 oz |
| Units | fl oz to... | ...to fl oz |
|---|---|---|
| Gallon | 0.0078125 gal | 128 oz |
| Quart | 0.03125 qt | 32 oz |
| Pint | 0.0625 pt | 16 oz |
| Tablespoon | 2 tbsp | 0.5 oz |
| Cup | 0.125 cups | 8 oz |
| Liter | 0.029573 l | 33.814022 oz |
| Milliliter | 29.573529 ml | 0.033814 oz |
| Cubic cm | 29.573529 cc | 0.033814 oz |