Convert kilojoule to watt-second
Please provide values below to convert kilojoule [kJ] to watt-second [W*s], or Convert watt-second to kilojoule.
1 kJ = 1000 W*s. To convert kilojoule to watt-second, multiply the value by 1000; to go the other way, divide by it (1 W*s = 0.001 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 = 1000 W*s
- 1 W*s = 0.001 kJ
- 10 kJ = 10000 W*s
- 100 kJ = 100000 W*s
How to Convert Kilojoule to Watt-Second
1 kJ = 1000 W*s
Example: convert 15 kJ to W*s:
15 kJ = 15 × 1000 W*s = 15000 W*s
Kilojoule to Watt-Second Conversion Table
| kilojoule | watt-second |
|---|---|
| 1 kJ | 1000 W*s |
| 2 kJ | 2000 W*s |
| 3 kJ | 3000 W*s |
| 5 kJ | 5000 W*s |
| 10 kJ | 10000 W*s |
| 20 kJ | 20000 W*s |
| 50 kJ | 50000 W*s |
| 100 kJ | 100000 W*s |
| 500 kJ | 500000 W*s |
| 1000 kJ | 1000000 W*s |
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.
Watt-Second
A watt-second (W·s) is a unit of energy equivalent to one joule, representing the amount of energy transferred or converted when one watt of power is applied for one second.
History/Origin
The watt-second originated from the SI system of units, where the watt (W) is the SI derived unit of power, and the second (s) is the SI base unit of time. It has been used historically in physics and engineering to quantify energy, especially in contexts where energy transfer occurs over short durations.
Current Use
The watt-second is primarily used in scientific and engineering contexts to measure small amounts of energy, such as in electrical and mechanical systems. It is often replaced by the joule in modern applications but remains a recognized unit within the energy converter category.
Frequently Asked Questions
What is 1 kilojoule in watt-second?
1 kilojoule (kJ) = 1000 watt-second (W*s).
How do you convert kilojoule to watt-second?
Multiply the kilojoule value by 1000. For example, 25 kJ × 1000 = 25000 W*s.
What is 10 kilojoule in watt-second?
10 kJ = 10000 W*s.
Which unit is larger, the kilojoule or the watt-second?
The kilojoule is the larger unit: 1 kJ = 1000 W*s.