Gigajoule is 1000000000 joule units.
Gigajoules to Centijoules Converter — GJ to cJ
Convert Gigajoule (GJ) to Centijoule (cJ) using the exact conversion factor (1 gigajoule = 100,000,000,000 centijoule). See the formula, worked examples, and conversion table.
Gigajoules 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 1e+9 / 0.01.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Gigajoules to Centijoules
Gigajoule and Centijoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: Gigajoule is 1000000000 joule units, and centijoule is 0.01 joule units.
Formula
centijoules = gigajoules × 100000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 gigajoule equals 1000000000 base units, and 1 centijoule equals 0.01 base units, so dividing one by the other gives the direct gigajoule-to-centijoule factor of 100000000000.
Simple example
1 GJ × 100000000000 = 100,000,000,000 cJ
1 gigajoule = 100,000,000,000 centijoules.
Real-world example
100 GJ × 100000000000 = 1e+13 cJ
100 gigajoules = 1e+13 centijoules.
Conversion table
| Gigajoule (GJ) | Centijoule (cJ) |
|---|---|
| 1 GJ | 100,000,000,000 cJ |
| 10 GJ | 1e+12 cJ |
| 100 GJ | 1e+13 cJ |
| 500 GJ | 5e+13 cJ |
| 1,000 GJ | 1e+14 cJ |
| 2,000 GJ | 2e+14 cJ |
Reverse conversion: Centijoule to Gigajoule
1 cJ × 1e-11 = 1e-11 GJ
1 centijoule = 1e-11 gigajoules.
gigajoules = centijoules × 1e-11
For a page dedicated to this direction, see Centijoule to Gigajoule.
Understanding the Gigajoule (GJ)
Gigajoule is 1000000000 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 gigajoule?
1 gigajoule equals 100,000,000,000 centijoules, using the exact defined conversion factor rather than an estimate.
How do I convert gigajoule to centijoule?
Multiply the gigajoule value by 100000000000. The converter above does this instantly to whatever precision you set.
How do I convert centijoule back to gigajoule?
Use the reverse factor: 1 centijoule equals 1e-11 gigajoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a gigajoule?
Gigajoule (GJ) is a unit of energy.
What is a centijoule?
Centijoule (cJ) is a unit of energy.
Is the gigajoule to centijoule conversion exact?
Yes. Both gigajoule and centijoule are defined by fixed standards rather than physical artifacts, so the factor of 100000000000 used above is exact to as many digits as you choose to display.