Kilojoule is 1000 joule units.
Kilojoules to Decijoules Converter — kJ to dJ
Convert Kilojoule (kJ) to Decijoule (dJ) using the exact conversion factor (1 kilojoule = 10,000 decijoule). See the formula, worked examples, and conversion table.
Kilojoules to Decijoules converter
Converter
Energy Converter
Convert joules, calories, kilowatt-hours, BTU, electronvolts, therms, and mechanical work units.
Context values
Some unit families need one extra value for a physically accurate result.
Decijoule is 0.1 joule units.
Result = input x 1000 / 0.1.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Kilojoules to Decijoules
Kilojoule and Decijoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Kilojoule is 1000 joule units, and decijoule is 0.1 joule units.
Formula
decijoules = kilojoules × 10000
This factor comes from each unit's defined relationship to the category's base unit: 1 kilojoule equals 1000 base units, and 1 decijoule equals 0.1 base units, so dividing one by the other gives the direct kilojoule-to-decijoule factor of 10000.
Simple example
1 kJ × 10000 = 10,000 dJ
1 kilojoule = 10,000 decijoules.
Real-world example
100 kJ × 10000 = 1,000,000 dJ
100 kilojoules = 1,000,000 decijoules.
Conversion table
| Kilojoule (kJ) | Decijoule (dJ) |
|---|---|
| 1 kJ | 10,000 dJ |
| 10 kJ | 100,000 dJ |
| 100 kJ | 1,000,000 dJ |
| 500 kJ | 5,000,000 dJ |
| 1,000 kJ | 10,000,000 dJ |
| 2,000 kJ | 20,000,000 dJ |
Reverse conversion: Decijoule to Kilojoule
1 dJ × 0.0001 = 0.0001 kJ
1 decijoule = 0.0001 kilojoules.
kilojoules = decijoules × 0.0001
For a page dedicated to this direction, see Decijoule to Kilojoule.
Understanding the Kilojoule (kJ)
Kilojoule is 1000 joule units.
Understanding the Decijoule (dJ)
Decijoule is 0.1 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decijoules are in 1 kilojoule?
1 kilojoule equals 10,000 decijoules, using the exact defined conversion factor rather than an estimate.
How do I convert kilojoule to decijoule?
Multiply the kilojoule value by 10000. The converter above does this instantly to whatever precision you set.
How do I convert decijoule back to kilojoule?
Use the reverse factor: 1 decijoule equals 0.0001 kilojoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a kilojoule?
Kilojoule (kJ) is a unit of energy.
What is a decijoule?
Decijoule (dJ) is a unit of energy.
Is the kilojoule to decijoule conversion exact?
Yes. Both kilojoule and decijoule are defined by fixed standards rather than physical artifacts, so the factor of 10000 used above is exact to as many digits as you choose to display.