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

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

  • grams to kilograms (g to kg)
  • kilograms to grams (kg to g)

Conversion Calculators

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

Convert g to kg

Convert kg to g

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

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

Conversion Definitions

Below are definitions relating to these conversion formulas.

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.

What is a kilogram (kg)?

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

How many grams in a kilogram?

There are 1,000 grams in a kilogram.

How many kilograms in a gram?

There are 0.001 kilograms in a gram.

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