Hectojoule is 100 joule units.
Hectojoules to Centijoules Converter — hJ to cJ
Convert Hectojoule (hJ) to Centijoule (cJ) using the exact conversion factor (1 hectojoule = 10,000 centijoule). See the formula, worked examples, and conversion table.
Hectojoules to Centijoules 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.
Centijoule is 0.01 joule units.
Result = input x 100 / 0.01.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Hectojoules to Centijoules
Hectojoule and Centijoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Hectojoule is 100 joule units, and centijoule is 0.01 joule units.
Formula
centijoules = hectojoules × 10000
This factor comes from each unit's defined relationship to the category's base unit: 1 hectojoule equals 100 base units, and 1 centijoule equals 0.01 base units, so dividing one by the other gives the direct hectojoule-to-centijoule factor of 10000.
Simple example
1 hJ × 10000 = 10,000 cJ
1 hectojoule = 10,000 centijoules.
Real-world example
100 hJ × 10000 = 1,000,000 cJ
100 hectojoules = 1,000,000 centijoules.
Conversion table
| Hectojoule (hJ) | Centijoule (cJ) |
|---|---|
| 1 hJ | 10,000 cJ |
| 10 hJ | 100,000 cJ |
| 100 hJ | 1,000,000 cJ |
| 500 hJ | 5,000,000 cJ |
| 1,000 hJ | 10,000,000 cJ |
| 2,000 hJ | 20,000,000 cJ |
Reverse conversion: Centijoule to Hectojoule
1 cJ × 0.0001 = 0.0001 hJ
1 centijoule = 0.0001 hectojoules.
hectojoules = centijoules × 0.0001
For a page dedicated to this direction, see Centijoule to Hectojoule.
Understanding the Hectojoule (hJ)
Hectojoule is 100 joule units.
Understanding the Centijoule (cJ)
Centijoule is 0.01 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many centijoules are in 1 hectojoule?
1 hectojoule equals 10,000 centijoules, using the exact defined conversion factor rather than an estimate.
How do I convert hectojoule to centijoule?
Multiply the hectojoule value by 10000. The converter above does this instantly to whatever precision you set.
How do I convert centijoule back to hectojoule?
Use the reverse factor: 1 centijoule equals 0.0001 hectojoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a hectojoule?
Hectojoule (hJ) is a unit of energy.
What is a centijoule?
Centijoule (cJ) is a unit of energy.
Is the hectojoule to centijoule conversion exact?
Yes. Both hectojoule and centijoule 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.