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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:

  • ounces to grams (oz to g)
  • grams to ounces (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

Below are definitions relating to these conversion formulas.

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