1 kilogram equals 1000 grams. To convert kilograms to grams, multiply the kilogram value by 1000. For quick reference: 1 kg = 1000 g, 5 kg = 5000 g, 10 kg = 10000 g, 100 kg = 100000 g.
FormulaGrams = Kilograms × 1000
Quick
How to convert kilograms to grams
1
Take your value
Start with your value in kilograms.
2
Multiply by 1000
Multiply the kilogram value by 1000. This is the exact conversion factor from kilograms to grams.
3
Read the result
The product is your value in grams. For example, 5 kg × 1000 = 5000 g.
Conversion formula
The exact factor from kilograms to grams is 1000.
Grams = Kilograms × 1000
Kilograms to Grams conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
Conversion table from kilograms to grams
Kilograms (kg)
Grams (g)
0.1 kg
100 g
0.25 kg
250 g
0.5 kg
500 g
1 kg
1000 g
1.5 kg
1500 g
2 kg
2000 g
2.5 kg
2500 g
3 kg
3000 g
4 kg
4000 g
5 kg
5000 g
6 kg
6000 g
7 kg
7000 g
8 kg
8000 g
9 kg
9000 g
10 kg
10000 g
12 kg
12000 g
15 kg
15000 g
18 kg
18000 g
20 kg
20000 g
25 kg
25000 g
30 kg
30000 g
35 kg
35000 g
40 kg
40000 g
45 kg
45000 g
50 kg
50000 g
60 kg
60000 g
70 kg
70000 g
75 kg
75000 g
80 kg
80000 g
90 kg
90000 g
100 kg
100000 g
120 kg
120000 g
125 kg
125000 g
150 kg
150000 g
175 kg
175000 g
180 kg
180000 g
200 kg
200000 g
225 kg
225000 g
250 kg
250000 g
275 kg
275000 g
300 kg
300000 g
350 kg
350000 g
400 kg
400000 g
450 kg
450000 g
500 kg
500000 g
600 kg
600000 g
750 kg
750000 g
1000 kg
1000000 g
2000 kg
2000000 g
5000 kg
5000000 g
Real-world reference
A liter of water weighs 1 kg. A typical pineapple is about 1 kg. An average adult cat weighs 4–5 kg. In grams, that gives you: 1 kg = 1000 g, 10 kg = 10000 g, 100 kg = 100000 g.
Frequently asked questions
How many grams are in 1 kilogram?
1 kilogram equals 1000 grams.
How do I convert kilograms to grams?
Multiply the kilogram value by 1000. So x kg × 1000 = the equivalent in g.
What is 5 kilograms in grams?
5 kilograms equals 5000 grams.
What is 10 kilograms in grams?
10 kilograms equals 10000 grams.
What is 100 kilograms in grams?
100 kilograms equals 100000 grams.
How do I convert back from grams to kilograms?
Multiply the gram value by 0.001. For example, 1 g = 0.001 kg.
Is the kilogram bigger than the gram?
Yes. 1 kilogram is larger than 1 gram — specifically 1000 times larger.
Are these conversion factors exact?
Yes. The factor of 1000 is derived directly from the SI definitions of kilogram and gram.
About the kilogram and the gram
The kilogram
The kilogram (kg) is the SI base unit of mass. Since the 2019 redefinition it is defined by fixing the Planck constant to exactly 6.62607015 × 10⁻³⁴ J·s, replacing the old International Prototype Kilogram artifact. In everyday use, the kilogram is the global standard for body weight, groceries, and engineering specifications.
The gram
The gram (g) is a metric unit of mass equal to one-thousandth of a kilogram. It is the everyday unit for food labeling, postage, jewelry, and laboratory measurements. The 2019 SI redefinition fixed the kilogram (and therefore the gram) in terms of Planck's constant, ending more than a century of dependence on a physical prototype.