BTU-to-kWh

The BTU-to-kWh calculator computes the number of Kilowatt-hours (kWh) in a number of British Thermal Units (BTUs).

INSTRUCTIONS: Choose units and enter the following:

• (BTU) British Thermal Units

Kilowatt-hours (kWh): The results are returns Kilowatt-hours (kWh).  However, these can be automatically converted to compatible units via the pull-down menu.

The Math / Science

A British Thermal Unit (BTU) is a unit of measurement for energy. It is commonly used in the United States and other countries for measuring the amount of heat energy. One BTU is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit at a specific temperature. It's often used in the context of heating and cooling systems to quantify the energy output or input. In scientific terms, 1 BTU is approximately equal to 1055 joules.

A kilowatt-hour (kWh) is a unit of electrical energy commonly used for billing purposes by electric utility companies. It represents the amount of energy consumed or produced by using one kilowatt (kW) of power over a period of one hour.

Mathematically, you can calculate kilowatt-hours using the formula:

kWh = kW × hours

For example, if you have a device with a power rating of 1 kilowatt and you use it for 3 hours, the energy consumption would be 3 kilowatt-hours (1 kW * 3 hours = 3 kWh).

Kilowatt-hours are commonly used on electricity bills to measure and charge for the amount of energy consumed by households or businesses.

BTUs to kWH 

The relationship between British Thermal Units (BTUs) and kilowatt-hours (kWh) involves the conversion of energy units. Both BTUs and kilowatt-hours are units of energy, but they are used in different contexts and systems of measurement.

To understand the relationship, you can use the following conversion factors:

1 kilowatt-hour is approximately equal to 3,412 BTUs.

This conversion factor is based on the fact that 1 kilowatt-hour is equivalent to 3.6 million joules (the SI unit of energy), and 1 BTU is approximately equal to 1,055 joules.

So, if you have an energy measurement in BTUs and you want to convert it to kilowatt-hours, you can use the conversion factor:

kWh = BTUs / 3,412​

Conversely, if you have an energy measurement in kilowatt-hours and want to convert it to BTUs, you can use the conversion:

BTUs = kWh × 3,412

These conversion factors allow you to relate energy measurements in BTUs and kilowatt-hours. Keep in mind that these are approximate values, and actual conversion factors may vary slightly depending on specific conditions.

Energy Calculators

• Kinetic Energy:                                    `KE= 1/2 *m * v^2`
• Kinetic Energy (change of velocity):    `KE = 1/2*m*(V_1-V_2)^2`
• Relativistic Kinetic Energy:                    `E_K = (m*c^2)/sqrt(1 - v^2"/"c^2") - m*c^2`
• Potential Energy:                                  `U(y) = m*g*y`
• Potential Energy of Gravity (two bodies):   `U(G) = - (G*m1*m2)/r`
• Nuclear Binding Energy:                       `E = m*c^2`
• Quantum Energy (Planck's Equation):   `E = h*f`
• Energy of a Particle in a Box:                `E_n=(n^2h^2)/(8mL^2)`
• Molecular Kinetic Energy:                      `KE = 3/2 * k_B *T`
• Electrostatic Potential Energy:               `E_(el) = k_e * (Q_1*Q_2)/d`
• Photon Energy from Wavelength:          `E = (h*c)/lambda`
• Heat Energy to Change Material Temperature:  `Q = C * m *DeltaT`