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Convert oz to g, g to oz - Weight/Mass Conversion

Use these online calculators to convert between ounces (oz) and grams (g). These Weight/Mass conversion calculators provide a quick and easy way to convert:

  • oz to g
  • g to oz

Conversion Calculators

Enter your value in one of the conversion calculators below to convert oz to g or convert g to oz.

Convert oz to g

Convert g to oz

How to convert oz to g: Use the conversion calculator on the left titled "Convert oz to g". Enter a value in the oz field and click on the "Calculate g" button. Your answer will appear in the g field.

How to convert g to oz: Use the conversion calculator on the right titled "Convert g to oz". Enter a value in the g field and click on the "Calculate oz" button. Your answer will appear in the oz field.

Conversion Definitions

The following is a list of definitions relating to conversions between ounces and grams.

What is an ounce (oz)?

An ounce is a unit of mass in both US Customary Units as well as the Imperial System. The symbol for ounce is oz. There are 16 ounces in a pound.

What is a gram (g)?

A gram is a unit of mass in the Metric System. The symbol for gram is g. There are 1,000 grams in a kilogram and 1,000 milligrams in a gram.

How many ounces in a gram?

There are 0.0352739619 ounces in a gram.

How many grams in an ounce?

There are 28.3495231 grams in an ounce.

Understanding the Weight/Mass Units

This table provides a summary of the Weight/Mass units within their respective measurement systems.

Unit Symbol Measurement System Description
ounces oz US Customary Units (and Imperial)  
pounds lbs or lb US Customary Units (and Imperial) 1 lb = 16 oz
stones st Imperial System 1 stone = 14 lbs
short tons T US Customary Units 1 short ton = 2000 lbs
long tons long tn Imperial System 1 long ton = 2240 lbs
micrograms mcg or μg Metric System 1,000,000 mcg = 1 g
milligrams mg Metric System 1000 mg = 1 g
centigrams cg Metric System 100 cg = 1 g, 1 cg = 10 mg
decigrams dg Metric System 10 dg = 1 g, 1 dg = 10 cg
grams g Metric System 1 g = 1000 mg or 100 cg or 10 dg
kilograms kg Metric System 1 kg = 1000 g
metric tons t Metric System 1 metric ton = 1000 kg