How many grams are in one Ounce?

One Ounce equals 28.34949254 grams.

How do you convert ounces to grams?

Use the conversion formula shown above or simply enter any value into our converter for an instant result.

Why use this Ounce to Gram converter?

Our converter uses internationally recognized conversion standards to provide accurate results for education, engineering, science, travel and daily calculations.

Can I convert decimal values?

Yes. You can convert whole numbers and decimal values with high precision.

Full Accuracy Guide

Ounce to gram Converter

Use this free Ounce to Gram converter to instantly convert Ounce (oz) into Gram (g). Our calculator uses internationally accepted conversion standards to deliver fast, accurate, and reliable results for students, engineers, travelers, businesses, and everyday users.

What is a Ounce?

The ounce (oz) is an imperial and US customary unit of mass equal to one sixteenth of a pound. It is widely used for measuring food portions, precious metals, cosmetics, medicines, and small household items. Ounces provide greater precision when measuring lighter objects.

Ounce to Gram Formula

Gram = Ounce ÷ 28.3494925441

Multiply or divide the Ounce value using the conversion factor above to obtain the equivalent Gram value.

Worked Conversion Example

Example

Step 1

Start with 100 Ounce

Step 2

100 ÷ 28.3494925441

Step 3

2834.94925441 Gram

Ounce to Gram Conversion Table

Ounce	Gram
1	28.34949254
2	56.69898509
5	141.74746272
10	283.49492544
20	566.98985088
25	708.7373136
50	1,417.4746272
100	2,834.94925441
250	7,087.37313602
500	14,174.74627204
1000	28,349.49254408

Common Uses of Ounce

Food serving sizes

Cooking ingredients

Jewelry

Medicine

Cosmetics

Packaging

Interesting Facts

16 ounces equal 1 pound.

The abbreviation for ounce is oz.

Ounces are commonly used for lightweight products.

Precious metals are often measured in troy ounces, which differ from standard ounces.

What is a Gram?

The gram (g) is a metric unit of mass equal to one thousandth of a kilogram. It is widely used for measuring food ingredients, medicines, jewelry, laboratory samples, and other lightweight objects. The gram is part of the International System of Units (SI) and is one of the most commonly used units of weight around the world.

History of Ounce

The ounce has been used since ancient Roman times and later became part of the British imperial measurement system. Today it remains widely used in the United States and several industries worldwide.

Weight