Kilograms to Grams
Kilograms to Grams (kg to g) Converter
Convert from
- Kilogramskg
- Poundslb
- Gramsg
- Milligramsmg
- Microgramsµg
- Tonnest
- Ouncesoz
- Stone (UK)st
- US short tonston (US)
- UK long tonston (UK)
- Troy ouncesoz t
- Grainsgr
- Caratsct
- Slugsslug
1 kilogram = 1,000 grams
Default is 5 significant figures. “Units typed as” decides what words like gallon, pint or cup mean when you type them. Scientific input such as 1e15 or 2.5e-3 works in the value box; type unit names or a whole conversion in the unit picker’s search.
- 1 kg = 1000 g
- 5 kg = 5000 g
- 10 kg = 10000 g
- 25 kg = 25000 g
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How it’s calculated
The kilogram is 1 000 grams exactly, by definition of the SI prefix kilo.
1 kg = 1,000 g (exact) · 1 g = 0.001 kg (exact)
g = kg × 1000
- Multiply the value in kilograms by 1000.
- To go back, divide by 1000 (or multiply by 0.001).
- 1 kg = 1,000 g · 1 g = 0.001 kg
Step by step
Find the conversion factor
By definition 1 kg = 1000 g. Source: BIPM SI Brochure (9th ed.).
Multiply by the factor written as a fraction
Put kg in the denominator so it cancels, leaving g.
Calculate (unrounded)
Round the answer
Rounded to 5 significant figures.
Answer: 1000 g
Formula: g = kg × 1000. Factors last reviewed 2026-10-27.
Kilograms to grams conversion table
1 kilogram = 1,000 grams · 1 g = 0.001 kg
- 1 kilogram = 1,000 grams
- 5 kilograms = 5,000 grams
- 10 kilograms = 10,000 grams
- 25 kilograms = 25,000 grams
- 100 kilograms = 100,000 grams
| Kilograms (kg) | Grams (g) |
|---|---|
| 0.1 kg | 100 g |
| 0.5 kg | 500 g |
| 1 kg | 1,000 g |
| 2 kg | 2,000 g |
| 3 kg | 3,000 g |
| 4 kg | 4,000 g |
| 5 kg | 5,000 g |
| 6 kg | 6,000 g |
| 7 kg | 7,000 g |
| 8 kg | 8,000 g |
| 9 kg | 9,000 g |
| 10 kg | 10,000 g |
| 15 kg | 15,000 g |
| 20 kg | 20,000 g |
| 25 kg | 25,000 g |
| 30 kg | 30,000 g |
| 40 kg | 40,000 g |
| 50 kg | 50,000 g |
| 75 kg | 75,000 g |
| 100 kg | 100,000 g |
| 250 kg | 250,000 g |
| 500 kg | 500,000 g |
| 1,000 kg | 1,000,000 g |
FAQ
How do I convert kilograms to grams?
Use g = kg × 1000. Multiply the value in kilograms by 1000.
How many grams are in 1 kilogram?
1 kilogram (kg) equals 1,000 grams (g).
How many kilograms are in 1 gram?
1 gram (g) equals 0.001 kilograms (kg).
What is 10 kg in g?
10 kilograms = 10,000 grams.
What is a kilogram?
The SI base unit of mass. Since 2019 it has been defined using a constant of nature (the Planck constant) instead of a metal reference weight.
What is a gram?
Defined as exactly 1/1,000 of a kilogram.
About these units
Kilogram (kg)
SI (metric)
Base unit
The SI base unit of mass. Since 2019 it has been defined using a constant of nature (the Planck constant) instead of a metal reference weight.
Source: BIPM SI Brochure (9th ed.)
Gram (g)
SI (metric)
1 g = 0.001 kg (exact)
Defined as exactly 1/1,000 of a kilogram.
Source: BIPM SI Brochure (9th ed.)