Energy Conversion

This tool provides equivalent-value calculations for energy between a variety of measurement units, including British Thermal Units (BTU), Joules (J), Kilowatt-hours (kWh), Therms (THM) and Calories (both nutritional and Thermochemical). To convert among any units in the column, you can select the unit to convert to and enter the value to convert from into the box. The conversion result will immediately appear.

Energy Conversion

British Thermal Units
BTU
Joules
J
Kilowatt-hour
kWh
Therm
THM
Calorie (Nutritional)
Cal
Calorie (Thermochemical)
cal

Formula

How many joules are in one BTU?

1 BTU = 1055.05585262 J

How many BTU’s are in one joule?

1 Joule =0.00094781712 BTU

Introduction

Introduction to conversion of energy

How do energy convert?

Energy conversion, the transformation of energy from forms provided by nature to forms that can be used by humans. There are many different types of energy, including kinetic, potential, gravitational and electrical. Energy can be transferred (move from one location to another) and it can change (transform) from one type to another – but the total amount of energy is always conserved, i.e. it stays the same.

 

Examples of energy conversions

 

*The Sun: nuclear energy into heat and light energy.

*Our bodies: chemical energy in our food into mechanical energy for us to move.

*An electric fan:electrical energy into kinetic energy.

 

Types of Energy Conversions

 

Light energy can be converted to heat energy.

Electrical energy can be converted to mechanical energy, light energy, heat energy, etc.

Chemical energy can be converted to electrical energy.

Thermal energy can be converted to heat energy.

 

Units of Energy 

 

Unit

Name

J

Joule

cal

Calorie

Wh

Watt hour

(kg) SKE

(kilogram) Coal equivalent

(kg) RÖE

(kilogram) Oil equivalent

oe oder OE

Oil equivalent

m³ Erdgas


cubic meter natural gas

BTU

British thermal unit

kpm

Kilogram force meter (Kilopondmeter)

erg

Erg

eV

Electron volt

Frequently Asked Questions

What is conversion of energy give two examples?

Energy can be converted from one form to another. Examples: Gasoline (chemical) is put into our cars, and with the help of electrical energy from a battery, provides mechanical (kinetic) energy. Purchased electricity is fed into our TVs and is converted to light and sound.

How do you calculate energy conversions?

To convert from J into units in the left column divide by the value in the right column or, multiply by the reciprocal, 1/x. To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into Joules then divide by the factor for B to convert out of Joules.

How is energy converted into temperature?

Divide the amount of heat energy provided to the substance, in joules, by the mass of the substance, in grams (g). For example, if 4,000 joules of energy were provided to 500 g of water, you would calculate 4,000/500 = 8. Divide the result of the previous calculation by the specific heat capacity of the substance.

How do you convert MMBtu to m3?

1 MMBtu = 28.263682 m3 of natural gas at defined temperature and pressure.

How do you convert AU to joules?

1 au = 4.359744E-18 J. 1 x 4.359744E-18 J = 4.359744E-18 Joules.

Is kJ smaller than J?

Thus, a kiloJoule (kJ) is 1000 Joules and a megaJoule (MJ) is 1,000,000 Joules. A related unit is the Watt, which is a unit of power (energy per unit time).

How many joules are in a mole?

Since 1 mole = 6.02214179×1023 particles (atoms, molecules, ions etc.), 1 Joule per mole is equal to 1 Joule divided by 6.02214179×1023 particles, or (6.022×10^23 particles/mole), 1.66054×10−24 Joule per particle.

How much energy is a Kilojoule?

A kilojoule is a unit of measure of energy, in the same way that kilometres measure distance. Food energy used to be measured in Calories (Cal) and some countries still use those units. The conversions are as follows: 1 kJ = 0.2 Cal.

What is the difference between kJ and J?

1 Joule (J) is equal to 0.001 kilojoule (kJ). To convert joules to kilojoules, multiply the joule value by 0.001 or divide by 1000. For example, to convert 100 J to kJ, divide 100 by 1000, that makes 0.1 kJ is 100 J.

What is a unit of energy called?

1 Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter. 1 kilowatt-hour is the energy of one kilowatt power flowing for one hour. (E = P t).
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