# Ounces to Grams conversion

oz

: g
+Grams:
 kg
g
Calculation:

Grams to Ounces ►

#### Ounces to Grams

Ounce Definition: An ounce (symbol: oz) is a unit of mass in the imperial and US customary systems of measurement. The avoirdupois ounce (the common ounce) is defined as exactly 28.349523125 grams and is equivalent to one sixteenth of an avoirdupois pound.

Current use: The ounce is still a standard unit of mass in the US customary system of measurement. It is mostly used in the United States for measuring packaged food products, food portions, and postal items, among other things. The ounce is still used in some other countries around the world that have roots in British history and culture. Due to metrication, the United Kingdom (UK) no longer officially uses the ounce. It is however, still used in some settings in the UK, such as restaurants.

Gram Definition: A gram (symbol: g) is a unit of mass in the International System of Units (SI). The definition of the gram is based on the kilogram, where a gram is one thousandth of a kilogram, the SI base unit of mass. Since 2019, the definition of the kilogram is no longer based on the international prototype, and rather is based on Planck's constant, h, along with the new definitions of the second and the meter.

Current use: The gram is widely used in every life as well as scientific contexts. For example, the gram is typically used to measure non-liquid ingredients used for cooking or groceries. Standards on the nutrition labels of food products often require the relative contents to be stated per 100 grams of the product.

#### How to convert Ounces to Grams

1 ounce (oz) is equal to 28.34952 grams (g).

1 oz = 28.34952 g

The mass m in grams (g) is equal to the mass m in ounces (oz) times 28.34952:

m(g) = m(oz) × 28.34952

#### Example

Convert 5 oz to grams:

m(g) = 5 oz × 28.34952 = 141.7476 g

Grams to Ounces ►