Energy Unit - Joule Calorie Conversion

In some occasion, it’s essential to measure how much energy measurement. For example, oil and natural gas companies need to have a way to measure the fuel takes of their customers so they can provide plenty natural gas when It's most necessary.

Numerous experimentations supported scientific approach, there's some form of energy measurement. A meter is an instrument that measures energy—such as the power and gas meters located on the sides of houses—and the standard unit of energy in the metric system is called a joule (J).

Energy can be measured in many different units. One calorie is equal to as the amount of heat energy unit needed to raise the temperature of 2.2 pounds (1 kilogram) of water by 1.8°F (1°C). Joule conversion to calorie: 1 Joule is approximately 0.2390 calorie. Power is simply the rate at which the energy is changed.

Energy can also be measured in units called foot-pounds. One foot-pound is the amount of work done in moving an object one foot against a 1-pound force. Therefore, if a 4-pound weight is lifted 6 feet off the ground, it's using 24 foot-pounds of energy.

Horsepower is another expresses energy. But it's a measure of power, not of energy unit itself. Power and energy is two different thing, power is different than energy. Energy is the ability to do work, on the other hand, power is a value of how quickly it's completed. Horse-power is used to value mechanical power. James Watt, a Scottish engineer, the first person advised the term of horse-power when running with invented steam engine.

One occasion, a doubtful farmer asked how many horses a steam engine could replace, this term was made up in place to make a reasonable equivalence. To measure it, Watt measured the amount a work a horse did in eight-hour period. Many types of power are now measured in units called watts (W). 1 kilowatt is equal to 1.341022 horsepower; this is as kilowatt to horsepower conversion.

Measuring Energy

Joule is the general unit in measuring energy. To cooling down a mug of hot chocolate at room temperature will free about 100,000 joules. The calorie is an old-fashioned unit often used to measure the energy contained in food. One calorie is comparable about 4,000 joules. Power is the value at which energy is given off or used, and most of the times it is then measured in watts. The use of 1 joule of energy every second is 1 watt. A 50 watt power light bulb uses 60 joules of energy every second to give off light and heat.


Physical units of measurement reflect measures of volume, height, distance, area,
force, impulse, and energy. Different kinds of energy are metered by various physical units: kilowatt-hours for counting electricity and tons for coal.

In order to do some comparison between different fuels, it is necessary to exchange the measurements to the identical units. In the United States, the unit of measure usually used for comparing fuels is the British thermal unit (Btu). British thermal unit is the number of energy necessary to enhance the temperature of 1 pound of water 1°F. One Btu is approximately equal to the energy released in to burn wood match.