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Ounces to Grams

Ounces to grams is our article dedicated to converting mass from the metric unit gram to the British imperial and United States customary unit ounce.

Have you have been searching how many grams in an ounce, or have you typed the British English spelling variant ounces to grammes in the search engine?

Then you have come to the right page, too. 🙂



Oz to G

The unit ounce is abbreviated as oz, and the thousandths of a kilogram is abbreviated as g, so for the conversion we often only write oz to g.

We start by discussing the ounces in current use:

The international avoirdupois ounce is the unit of mass used to measure groceries and bulk dry food in the United States of America.

And, if you see “ounce” in a cookbook, it means this unit.

This unit of mass is defined as 28.349523125 grams, equivalent to 1⁄16 avoirdupois pound.

Hence, the facts provided on this page do NOT mean the unit of volume fluid ounce.

The information in this article does not apply to the international troy ounce either, unless otherwise stated.

The troy ounce is only used to weigh precious metals such as silver.

The international troy ounce is defined as 31.1034768 grams, roughly 10% more than the avoirdupois ounce.

In the next section we show you how to convert the units.

How to Convert Ounces to Grams?

To change oz to g multiply the mass in ounces by 28.349523125.

The grams to ounces formula is [g] = [oz] * 28.349523125.

Therefore, for instance, 10 international avoirdupois oz are equal to approximately 283.5 grams.

(As a side-note: to convert troy ounces to grams multiply the mass in ounces by 31.1034768.

The grams to troy ounces formula is [g] = [troy oz] * 31.1034768.

For example, 10 international troy ounces gold or palladium are more or less 311.035 grams.

Keep in mind to only use the troy ounces formula for gold and other precious metals.)

Throughout our website, except where we explicitly state troy ounces, we mean the retail sale ounce used to weigh dry foods.

Thus, our calculator above uses international avoirdupois ounces.

Frequently Asked Questions

How much does 1 oz weigh in grams?

1 ounce = 28.349523125 grams

How many grams are in an ounce in Australia?

Because of the Metrication in Australia imperial units like the ounce are obsolete in Down Under

What weight is 1 oz in grams?

1 oz is 28.349523125 grams

The frequent conversions in this category include, for example:


The image below sums oz to grams up:
Here you can change grams to ounces.Further Information:– Article written by Mark, last updated on March 22nd, 2024