Convert kilojoule to attojoule
Please provide values below to convert kilojoule [kJ] to attojoule [aJ], or Convert attojoule to kilojoule.
1 kJ = 1.0000e+21 aJ. To convert kilojoule to attojoule, multiply the value by 1.0000e+21; to go the other way, divide by it (1 aJ = 1.0000e-21 kJ). Both units measure energy and appear in everyday as well as technical calculations, so switching between them quickly is often useful.
Quick Reference
- 1 kJ = 1.0000e+21 aJ
- 1 aJ = 1.0000e-21 kJ
- 10 kJ = 1.0000e+22 aJ
- 100 kJ = 1.0000e+23 aJ
How to Convert Kilojoule to Attojoule
1 kJ = 1e+21 aJ
Example: convert 15 kJ to aJ:
15 kJ = 15 × 1e+21 aJ = 1.5e+22 aJ
Kilojoule to Attojoule Conversion Table
| kilojoule | attojoule |
|---|---|
| 1 kJ | 1.0000e+21 aJ |
| 2 kJ | 2.0000e+21 aJ |
| 3 kJ | 3.0000e+21 aJ |
| 5 kJ | 5.0000e+21 aJ |
| 10 kJ | 1.0000e+22 aJ |
| 20 kJ | 2.0000e+22 aJ |
| 50 kJ | 5.0000e+22 aJ |
| 100 kJ | 1.0000e+23 aJ |
| 500 kJ | 5.0000e+23 aJ |
| 1000 kJ | 1.0000e+24 aJ |
Kilojoule
A kilojoule (kJ) is a unit of energy equal to 1,000 joules, used to quantify energy transfer or work done.
History/Origin
The kilojoule was introduced as part of the International System of Units (SI) to provide a convenient scale for measuring energy, especially in fields like nutrition and physics, replacing the joule for larger quantities.
Current Use
The kilojoule is widely used in nutrition to express food energy content, in physics and engineering to measure energy transfer, and in various scientific and industrial applications within the 'Energy' converter category.
Attojoule
An attojoule (aJ) is a unit of energy equal to 10^-18 joules.
History/Origin
The attojoule was introduced as part of the SI prefixes to measure extremely small amounts of energy, particularly in fields like nanotechnology and quantum physics, as the need to quantify very tiny energy scales grew.
Current Use
The attojoule is used in scientific research to measure minute energy quantities, such as in nanotechnology, quantum computing, and molecular biology, where energies involved are extremely small.
Frequently Asked Questions
What is 1 kilojoule in attojoule?
1 kilojoule (kJ) = 1.0000e+21 attojoule (aJ).
How do you convert kilojoule to attojoule?
Multiply the kilojoule value by 1.0000e+21. For example, 25 kJ × 1.0000e+21 = 2.5000e+22 aJ.
What is 10 kilojoule in attojoule?
10 kJ = 1.0000e+22 aJ.
Which unit is larger, the kilojoule or the attojoule?
The kilojoule is the larger unit: 1 kJ = 1.0000e+21 aJ.