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Oz to Kg

Welcome to oz to kg.

If you have been searching for ounces to kilograms, or if you have been wondering about how many kilograms in an ounce, then you have found the right page as well.

Here you can learn everything about oz into kg, and we also have converter you’re gonna like.

Keep reading to find out how to convert ounces to kg.



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The ounce is an imperial unit of mass as well as US customary unit.

To avoid disambiguation it is sometimes called mass ounce.

The official name is international avoirdupois ounce, abbreviated as oz.

One Ounce which is equivalent to 1/16 international avoirdupois pounds.

The kilogram (kg) on the other hand is the basic unit of mass in the metric system (SI), also known as the International System of Units.

How to Convert Oz to Kg?

In 1959, the aforementioned pound has been specified as 0.45359237 kg.

Thus one ounce equals 0.028349523125 kg.

To conduct the conversion you have to multiply the mass in oz by 0.45359237 / 16.

The formula is [kg] = [oz] * 0.45359237 / 16

For example, to convert 2 ounces to kilograms multiply 2 by 1 / 0.028349523125 to get ~ 0.05669904625 kg.

You can have it faster by using our app above.

Our calculator changes the weight whilst typing.

About our Oz to Kg Converter

Our app at the top of this page takes the point as decimal separator.

Changing the lower field inverts the math.

Don’t forget to bookmark us as!

In place of calculating the result with pen and pencil or making use of our calculator you can located frequent conversions by means of our search form in the menu.

Then hit “go”.

BTW: Although the terms mass and weight are used interchangeably in daily life, they are not the same.

In strict terms, ounces to kilograms is not a weight conversion, but a mass conversion.

You can learn more about it by reading the corresponding 4th paragraph on our home page.

There you can also find will find everything about pounds to kg, including a converter for example.

How many Kilograms in an Ounce?

History has seen many different ounces in the course of time.

They include Troy and Tower ounces, to mention but a few.

The troy ounce is still the standard to weigh gold, silver and other precious metals.

  • [kg] = [Troy ounce] * 0.45359237 / 14 7/12
  • [kg] = [Tower ounce] * 0.45359237 / 15 5/9

However, nowadays it’s safe to answer the questions how many kilograms in an oz and how many kilograms in an ounce as 0.028349523125 kilograms exactly.

As a rough estimate you can use this approximation: 1 oz ~ 0.0283 kg.

Spelled out, one pound is approximately equal to 0.0283 kilograms.

Frequent conversions include, for instance:

As a side note an ounce is equivalent to 1/16 avoirdupois pounds and to 437.5 grains.


You already know the whole lot about the conversion.

We have made this page, especially, the calculator, to help visitors changing ounces to kg for the fact that few people know how to calculate it out of the top of their head.

People planning vacations abroad or going on an overseas business trip are advised to bookmarking this site in order to be able to change these units quickly when a mass conversion has to be conducted.

We are coming to the end of our article, summarized by the following image:

Here you can convert kg to oz.

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More information: – Article written by Mark