Watt Converter
Convert Watt to Kilojoule Second and more • 80 conversions
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Unit Explanations
WattW
Source UnitThe watt (symbol: W) is the SI unit of power, defined as the rate of energy transfer equivalent to one joule per second. It measures the amount of energy conversion or transfer that occurs per unit time. In practical terms, it quantifies the rate at which work is done or energy is consumed. The watt is a derived unit in the International System of Units (SI), and it is used extensively in various fields such as electricity, mechanics, and thermodynamics to quantify power output or consumption.
Current Use
The watt is widely used across the globe to measure electrical power, mechanical power, and heat transfer. It serves as a fundamental unit in the fields of electrical engineering, physics, and many applied sciences. It is crucial for calculating energy consumption in households, industries, and for determining the power output of engines and machinery.
Fun Fact
One watt is equivalent to 1/746th of a horsepower.
Kilojoule SecondkJ·s
Target UnitThe kilojoule second (kJ·s) is a unit of energy-time, representing the amount of energy in kilojoules that is expended over a time duration in seconds. It is derived from the kilojoule, a standard unit of energy in the International System of Units (SI), which quantifies energy, work, or heat. The usage of kilojoule seconds is prevalent in various scientific and engineering contexts where energy transfer over time is critical, such as in thermodynamics and mechanical systems.
Current Use
Kilojoule seconds are used primarily in fields that require an understanding of energy transfer over time. These include engineering disciplines, food science for caloric content analysis, and various industrial processes where energy efficiency is evaluated. The unit helps in assessing the performance of engines, heating systems, and other energy-related technologies.
Fun Fact
The kilojoule is often used in nutrition to indicate the energy content of food, where 1 kilojoule equals about 0.239 kilocalories.
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📐Conversion Formula
= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.
Watt
power • SI Unit
Definition
The watt (symbol: W) is the SI unit of power, defined as the rate of energy transfer equivalent to one joule per second. It measures the amount of energy conversion or transfer that occurs per unit time. In practical terms, it quantifies the rate at which work is done or energy is consumed. The watt is a derived unit in the International System of Units (SI), and it is used extensively in various fields such as electricity, mechanics, and thermodynamics to quantify power output or consumption.
History & Origin
The watt is named after James Watt, a Scottish engineer and inventor whose improvements to the steam engine were fundamental to the changes brought by the Industrial Revolution. The unit was introduced to provide a consistent measure of power, reflecting Watt's contributions to power engineering.
Etymology: Named after James Watt, a pioneer in steam engine development.
Current Use
The watt is widely used across the globe to measure electrical power, mechanical power, and heat transfer. It serves as a fundamental unit in the fields of electrical engineering, physics, and many applied sciences. It is crucial for calculating energy consumption in households, industries, and for determining the power output of engines and machinery.
💡 Fun Facts
- •One watt is equivalent to 1/746th of a horsepower.
- •The watt is the power required to lift a small apple one meter in one second.
- •James Watt's improvements to the steam engine greatly increased its efficiency and power output.
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Kilojoule Second
power • Non-SI
Definition
The kilojoule second (kJ·s) is a unit of energy-time, representing the amount of energy in kilojoules that is expended over a time duration in seconds. It is derived from the kilojoule, a standard unit of energy in the International System of Units (SI), which quantifies energy, work, or heat. The usage of kilojoule seconds is prevalent in various scientific and engineering contexts where energy transfer over time is critical, such as in thermodynamics and mechanical systems.
History & Origin
The kilojoule second emerged in the late 20th century as a necessary unit in fields such as thermodynamics and mechanical engineering. The kilojoule itself was adopted as part of the SI system in 1960, based on the joule, which was defined in terms of mechanical work. Combining the concept of energy with time allowed scientists and engineers to express energy transfer rates in a more practical manner.
Etymology: The term 'kilojoule' comes from 'kilo', meaning one thousand, and 'joule', named after physicist James Prescott Joule, who studied the nature of heat and energy. The addition of 'second' indicates the time component associated with energy transfer.
Current Use
Kilojoule seconds are used primarily in fields that require an understanding of energy transfer over time. These include engineering disciplines, food science for caloric content analysis, and various industrial processes where energy efficiency is evaluated. The unit helps in assessing the performance of engines, heating systems, and other energy-related technologies.
💡 Fun Facts
- •The kilojoule is often used in nutrition to indicate the energy content of food, where 1 kilojoule equals about 0.239 kilocalories.
- •The concept of energy-time units like kilojoule seconds is essential in understanding the efficiency of renewable energy systems, such as solar panels.
- •The joule, the base unit for energy, is defined as the energy transferred when a force of one newton is applied over a distance of one meter.
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Frequently Asked Questions
How do I convert to ?▼
To convert to , multiply your value by 1. For example, 10 equals 10 .
What is the formula for to conversion?▼
The formula is: = × 1. This conversion factor is based on international standards.
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