Grams to Kilograms (g to kg) Converter

Convert grams (g) to kilograms (kg) instantly using our free online weight converter. Enter any weight in grams to find its equivalent in kilograms, along with the exact conversion formula, step-by-step calculation, and a useful conversion table.

1 gram = 0.001 kilograms

From
To
0.001
Try:
Step-by-stepg → kg
11 kg = 1,000 gformula
21 g ÷ 1,000substitute
30.001 kgresult
URLiunitconverter.com/weight/grams-to-kilograms?value=1Open
1 g in every unit
mg
Milligram
1 mg = 0.000001 kg
1,000 mg
g
Gram
1 g = 0.001 kg
1 g
kg
Kilogram
1 kg = 1 kg
0.001 kg
t
Metric ton
1 t = 1000 kg
0.000001 t
oz
Ounce
1 oz = 0.0283495231 kg
0.035273962 oz
lb
Pound
1 lb = 0.45359237 kg
0.0022046226 lb
st
Stone
1 st = 6.35029318 kg
0.00015747304 st

Grams to Kilograms Conversion Formula

To convert grams (g) to kilograms (kg), divide the weight in grams by 1,000. For example, 750 g ÷ 1,000 = 0.75 kg.

Kilograms (kg) = Grams (g) ÷ 1,000

One kilogram contains exactly 1,000 grams. You can also multiply the gram value by 0.001.

Example: Convert 2,500 grams to kilograms

12,500 ÷ 1,000 = 2.5 kgDivide
Result2,500 g = 2.5 kg

The conversion factor is exact, so an exact input value requires no rounding.

How to Convert Grams to Kilograms

  1. Identify the weight in grams.
  2. Divide the gram value by 1,000.
  3. Express the result in kilograms (kg).

Example: Convert 750 grams to kilograms

1750 ÷ 1,000 = 0.75 kgDivide
Result750 g = 0.75 kg

Moving the decimal point three places to the left gives the same answer: 125 g becomes 0.125 kg. Use the calculator above for whole-number or decimal gram values.

Grams to Kilograms Conversion Table

Common conversions for smaller weights, packaging quantities, and larger measurements. Values are calculated exactly and shown without unnecessary trailing zeros.

Grams (g)Kilograms (kg)
1 g0.001 kg
5 g0.005 kg
10 g0.01 kg
25 g0.025 kg
50 g0.05 kg
100 g0.1 kg
125 g0.125 kg
200 g0.2 kg
250 g0.25 kg
400 g0.4 kg
500 g0.5 kg
750 g0.75 kg
1,000 g1 kg
1,250 g1.25 kg
1,500 g1.5 kg
2,000 g2 kg
2,500 g2.5 kg
5,000 g5 kg
10,000 g10 kg

Understanding Grams and Kilograms

What Is a Gram (g)?

A gram is a metric unit of mass equal to one-thousandth of a kilogram.

1 gram = 0.001 kilograms

Grams are convenient for food ingredients, small packages, and laboratory samples that are too small to express practically in whole kilograms.

What Is a Kilogram (kg)?

The kilogram is the base unit of mass in the International System of Units (SI).

1 kilogram = 1,000 grams

Kilograms are used for body mass, groceries, packaged goods, shipping, and industrial materials. The prefix “kilo” means one thousand.

Both units measure mass in the metric system. The gram is a decimal submultiple of the kilogram, and the kilogram is 1,000 times as large.

Quick Mental Math Trick

Move the decimal point three places to the left:

  • 50 g = 0.05 kg
  • 150 g = 0.15 kg
  • 350 g = 0.35 kg
  • 500 g = 0.5 kg
  • 1,250 g = 1.25 kg

For kilograms to grams, move the decimal point three places to the right or multiply by 1,000. This works for whole numbers and decimals.

Common Uses of Grams to Kilograms Conversion

  • Cooking and food packaging: a 750 g flour package has a mass of 0.75 kg, useful when comparing ingredients or following recipes.
  • Shipping and parcels: a 2,500 g parcel has a mass of 2.5 kg, allowing comparison with shipping limits expressed in kilograms.
  • Retail products: five 200 g packages have a combined mass of 1,000 g, or 1 kg.

Frequently Asked Questions

How many kilograms are in 1 gram?
One gram equals exactly 0.001 kilograms.
How do I convert grams to kilograms?
Divide the weight in grams by 1,000. For example, 2,000 g ÷ 1,000 = 2 kg.
How many kilograms are in 500 grams?
500 grams equals exactly 0.5 kilograms.
Is 1,000 grams equal to 1 kilogram?
Yes. One thousand grams equals exactly one kilogram.
How many kilograms are in 250 grams?
250 grams equals 0.25 kilograms.
How many kilograms are in 1,500 grams?
1,500 grams equals 1.5 kilograms.
How do I convert kilograms back to grams?
Multiply the kilogram value by 1,000. For example, 2.5 kg × 1,000 = 2,500 g.