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Grams to Kilograms Conversion

Camille Ira B. Mendoza

Updated on January 7, 2026

No matter how big or small a mass is, converting grams to kilograms is simple. The metric system is based on tens, so you only need to divide the number of grams by 1,000. This makes unit conversions logical and easy to remember. With Brighterly, you can practice this rule step by step. Clear examples help you apply it correctly every time.

Difference between grams and kilograms

In the metric system, mass is commonly measured in grams (g) and kilograms (kg), and the prefix ‘’kilo-” signifies a factor of 1000. Thus, 1 kilogram equals 1000 grams when converted to grams.

This g to kg conversion can be expressed mathematically as follows:

1 kilogram = 1000 grams

We discovered how many kg are in a gram, and what else we should know, that the kilogram and the gram have a few similarities, but they are fundamentally different:

1. Grams are used to measure lighter objects, while kilograms are used to measure heavier ones.
2. Grams are denoted by “g”, and kilograms by “kg”.
3. A kilogram is larger than a gram, as 1 kilogram equals 1,000 grams.
4. Both grams and kilograms are metric units that follow the base-10 system.
5. To convert grams to kilograms, divide by 1,000; to convert kilograms to grams, multiply it by 1,000.

Grams to kilograms calculator

A Grams to Kilograms Calculator is a useful tool that quickly converts grams into kilograms. Using the standard metric system rule (1 kilogram = 1,000 grams), it automatically divides the grams value by 1,000. This tool is helpful for real-life applications, like measuring food, groceries, or other items. It makes kilo to grams conversions fast, simple, and error-free. So, to know how many grams in a kg, in real life, people always use an easy calculator.

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How to convert grams to kilograms?

There are two ways to convert grams to kilograms.

If we want to convert 3,000 grams into kilograms, let’s take an example. The following is the process for converting grams to kilograms. As 1 kg = 1000 g, we get 1 g = 1/1000 kg.

As a result, we will divide 1000 grams by 1000 to convert grams to kilograms.

• 3,000/1000 = 3 kg

We can find out how many grams in a kilo, for example, in 20 kg by multiplying it by 1000.

Grams can also be converted to kilograms by shifting the decimal point three places to the left.

It takes 1 g = 1/1000kg.  

As a result, 1 g = 0.001 kg

We have a grams in kilograms conversion table. This makes it easier to handle real-life measurements, like food or other everyday items.

Convert grams to kilograms formula

To solve several mathematical problems, you need to understand the grams-to-kilogram conversion.

The symbol “kg” stands for 1000 grams or 103 grams.

In this case, 1 kg equals 1000 g

As well as 1 g equals 1/1000 kg

Furthermore, we can determine how many kilograms there are in a gram. 

Examples using grams to kilograms formula

Example 1: Convert 3200 grams into kilograms.

Solution:

To find: 3200 grams = ? Kg

Using the grams to kilograms formula:

1 gram = 1/1000 kilograms

3200 grams = 3200 ÷ 1000 kilograms

3200 grams = 3.2 kilograms

Answer:

Example 2: Convert 750 grams into kilograms.

Solution:

To find: 750 grams = how many kilograms?

Using the grams to kg formula:

1 gram = 1/1000 kilograms

750 grams = 750 ÷ 1000 kilograms

750 grams = 3/4 kilograms = 0.75 kilograms

Answer:

Example 3: Convert 1250 grams into kilograms.

Solution:

To find: 1250 grams = ? kg

We need to use gram to kilogram formula here:

1 gram = 1/1000 kilograms

1250 grams = 1250 ÷ 1000 kilograms

1250 grams = 1.25 kilograms

Answer: 

Solved examples on gram vs kilogram

Example 4: A bakery used 1250 grams of flour to bake bread. Convert this into kilograms.

Solution: Using the grams to kilograms formula: 1 gram = 1/1000 kilograms
1250 grams = 1250 ÷ 1000 kilograms
1250 grams = 1.25 kilograms

Answer:

Example 5: Apples weighing 4800 grams were delivered by a delivery truck. How many kilograms are in a gram was the truck carrying?

Solution: Using the grams to kilograms formula: 1 gram = 1/1000 kilograms
4800 grams = 4800 ÷ 1000 kilograms
4800 grams = 4.8 kilograms

Answer: 

Example 6: Sarah bought 600 grams of chocolate. How many g in kg is it? Convert it!

Solution: Here as well, we need the grams to kilo formula:
1 gram = 1/1000 kg
600 grams = 600 ÷ 1000 kg
600 grams = 0.6 kg

Answer: 

Practice Problems on Grams to Kilograms Conversion

1. Mother bought you 2500 grams of your favorite kiwi gold. Convert it to understand how many g in a kg it is?

   1. 0.25 kg
   2. 2.5 kg
   3. 25 kg
   4. 250 kg

2. Jane bought 750 grams of rice. She wants to convert it into kilograms. Help her!

   1. 7.5 kg
   2. 0.75 kg
   3. 75 kg
   4. 0.075 kg

3. A grocery shop received 1800 grams of apples. But the accounting is kept in kilograms. How many kg in a gram is that?

   1. 18 kg
   2. 1.8 kg
   3. 0.18 kg
   4. 0.018 kg

4. Grandmother gave you 500 grams of chocolate. What is its weight in kilograms?

   1. 5 kg
   2. 50 kg
   3. 0.5 kg
   4. 0.05 kg

5. A sack of potatoes weighs 4200 grams. How many kilograms of potatoes are there?

   1. 0.42 kg
   2. 42 kg
   3. 4.2 kg
   4. 420 kg

Frequently Asked Questions on Grams to Kilograms Conversion

How to convert kilograms to grams?

To convert kg to grams, we need to multiply by 1,000, because one kilogram equals one thousand grams.

Is grams or kilograms bigger

Kilograms are bigger than grams. One kilogram is made up of 1,000 grams, which means grams are smaller. Grams are usually used to measure lighter weights or smaller quantities.

How many grams are equal to 7 kilograms?

7 kilograms are equal to 7,000 grams. To find this, we need to multiply 7 by 1,000: 7 х 1,000 = 7,000.

How to change grams to kilograms?

To change grams to kilograms, divide the grams by 1,000. It’s also possible to move the decimal point three places to the left to get kilograms.

Camille Ira B. Mendoza

42 articles

I am a seasoned math tutor with over seven years of experience in the field. Holding a Master’s Degree in Education, I take great joy in nurturing young math enthusiasts, regardless of their age, grade, and skill level. Beyond teaching, I am passionate about spending time with my family, reading, and watching movies. My background also includes knowledge in child psychology, which aids in delivering personalized and effective teaching strategies.