Convert Kilograms to Grams
1 kilogram (kg) equals 1000 grams (g).
1 kg = 1000 g
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk kilogram to gram converter to paste a column from Excel.
How to Convert Kilogram to Gram
- 1 kg = 1000 g
- 1 g = 0.001 kg
- Example: convert 15 kg to g: 15 kg = 15 × 1000 g = 15000 g
Formula
g = kg × 1000
Derivation from SI units:
- SI base unit, fixed by the Planck constant h = 6.626 070 15 × 10⁻³⁴ J·s
- 1 g = 10⁻³ kg
Both units are defined exactly, so the factor is exact. Kilogram definition: kilogram; Gram definition: gram.
Worked examples
- A 1.5 kg bag of flour is 1500 g.
1.5 kg × 1000 = 1500 g - 0.25 kg is 250 g.
0.25 kg × 1000 = 250 g
Kilogram to Gram conversion table
| Kilograms (kg) | Grams (g) |
|---|---|
| 0.1 kg | 100 g |
| 0.25 kg | 250 g |
| 0.5 kg | 500 g |
| 1 kg | 1000 g |
| 2 kg | 2000 g |
| 2.5 kg | 2500 g |
| 3 kg | 3000 g |
| 5 kg | 5000 g |
| 10 kg | 10000 g |
| 15 kg | 15000 g |
| 20 kg | 20000 g |
| 23 kg | 23000 g |
| 25 kg | 25000 g |
| 30 kg | 30000 g |
| 40 kg | 40000 g |
| 50 kg | 50000 g |
| 55 kg | 55000 g |
| 60 kg | 60000 g |
| 65 kg | 65000 g |
| 70 kg | 70000 g |
| 75 kg | 75000 g |
| 80 kg | 80000 g |
| 90 kg | 90000 g |
| 100 kg | 100000 g |
| 150 kg | 150000 g |
| 1000 kg | 1000000 g |
Where it's used
Kilogram values are converted to grams for recipes, lab work and portioning. Multiply by 1000.
Kilogram to other weight and mass units
| Conversion | 1 kg equals |
|---|---|
| kilogram to gram | 1000 g |
| kilogram to milligram | 1000000 mg |
| kilogram to microgram | 1000000000 µg |
| kilogram to metric ton | 0.001 t |
| kilogram to pound | 2.204622622 lb |
| kilogram to ounce | 35.27396195 oz |
| kilogram to stone | 0.1574730444 st |
| kilogram to short ton | 0.001102311311 ton (US) |
| kilogram to long ton | 0.0009842065276 ton (UK) |
| kilogram to grain | 15432.35835 gr |
| kilogram to troy ounce | 32.15074657 oz t |
| kilogram to carat | 5000 ct |
Frequently asked questions
How many grams are in a kilogram?
Exactly 1000.
How many grams are in 1 kilogram?
1 kg = 1000 g.
How do I convert kilograms to grams?
Multiply the value in kg by 1000. For example, 15 kg × 1000 = 15000 g.
Is the kg to g conversion exact?
Yes. Both units are defined exactly, and 1 kg is exactly 1000 g.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Section 2.3.1, base unit definitions.
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Kilograms to Grams. Retrieved October 17, 2026, from https://scientificconverters.com/mass/kilograms-to-grams/
IEEE
Scientific Converters, "Convert Kilograms to Grams," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/mass/kilograms-to-grams/