Joule to BTU Converter (J to BTU)

How to Convert Joule to BTU

Formula: BTU = Joule × 0.00094781

Example: 1 J = 0.00094781 BTU

You can also use the interactive converter above. Simply enter any Joule value and the equivalent BTU value will appear instantly. Click the ⇄ button to reverse the conversion.

A little context on Joule and BTU helps this conversion stick, along with some frequently asked questions below.

Step-by-step example — Convert 1000 J to BTU:

What is Joule and BTU?

A Joule (J) is the SI unit of energy, used as the scientific standard for measuring work and heat.

A BTU (British Thermal Unit) is an imperial energy unit, used mainly for rating heating and cooling equipment.

Real World Uses of Joule to BTU Conversion

• Joule: Commonly used for appearing on nutrition labels in some countries alongside kilojoules.
• BTU: Commonly used for rating the cooling capacity of air conditioners.
• Joule: Commonly used in physics and engineering as the SI base unit for work and energy.
• BTU: Commonly used in the US natural gas and HVAC industry for energy billing.

Frequently Asked Questions

What is the formula to convert Joule to BTU?

The formula is: BTU = Joule x 0.00094781. Multiply any Joule value by 0.00094781 to get the equivalent in BTU.

What is 1 Joule in BTU?

1 J = 0.00094781 BTU.

How many Joule are in 1 BTU?

1 BTU = 1055.06377860542 J.

Is Joule bigger or smaller than BTU?

Joule is smaller than BTU. 1 BTU = 1055.06377860542 J.

What is 5000 J in BTU?

5000 J = 4.739066972 BTU.

What is 12000 BTU in J?

12000 BTU = 12,660,720 J.

How is a joule defined?

A joule equals the energy used when a force of 1 newton moves an object 1 meter — it directly links energy to the SI units of force and distance.