Convert British Thermal Unit to Joule Online

About British Thermal Unit to Joule Conversion

This converter converts British Thermal Unit (BTU) to Joule (J). One British Thermal Unit (BTU) equals 1055.06 Joule (J).

Formula:

1 British Thermal Unit (BTU) = 1055.06 Joule (J)

Example:

1 BTU = 1055.06 J
2 BTU = 2110.12 J

British Thermal Unit (BTU) to Joule (J) Conversion

British to Joule conversion explained with exact factors, step-by-step examples, and situations where this conversion is commonly used.

Conversion Formula

Joule = British × 1055.06

To convert British Thermal Unit (BTU) to Joule (J), multiply the value by 1055.06. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 BTU to J.

  • Step 1: Write the formula: J = BTU × 1055.06
  • Step 2: Substitute: 1 × 1055.06
  • Step 3: Result: 1055.06 J
So, 1 BTU = 1055.06 J.

About the Units

British Thermal Unit (BTU)

One British Thermal Unit (BTU) equals 1055.06 Joule (J)

A widely used unit across scientific, engineering, and measurement contexts.

Joule (J)

One Joule (J) equals 0.000948 British Thermal Unit (BTU)

A widely used unit across scientific, engineering, and measurement contexts.

Where This Conversion Is Used

  • Converting values from British to Joule for engineering or scientific workflows.
  • Used when normalizing mixed-unit datasets requiring consistent Joule representation.
  • Applied when comparing different measurement systems across tools and documents.

Frequently Asked Questions

How many Joule (J) are in 1 British Thermal Unit (BTU)?

1 BTU = 1055.06 J.

What is the formula for converting British Thermal Unit (BTU) to Joule (J)?

Multiply the BTU value by 1055.06.

Can I reverse the conversion?

Yes. 1 J = 0.000948 BTU.

Conclusion

By applying the conversion factor shown above, you can reliably convert British Thermal Unit (BTU) to Joule (J) for use in scientific analysis, engineering calculations, academic work, or daily measurements.

Quick Links for Unit Converters

Convert British Thermal Unit to Other Units

British Thermal Unit to Joule

1 BTU = 1055.06 J

1 British Thermal Unit (BTU) = 1055.06 Joules (J)

1 BTU equals 1055.06 Js.

British Thermal Unit to Kilojoule

1 BTU = 1.0550599999999999 kJ

1 British Thermal Unit (BTU) = 1.0550599999999999 Kilojoules (kJ)

1 BTU equals 1.0550599999999999 kJs.

British Thermal Unit to Megajoule

1 BTU = 0.00105506 MJ

1 British Thermal Unit (BTU) = 0.00105506 Megajoule (MJ)

1 BTU equals 0.00105506 MJ.

British Thermal Unit to Gigajoule

1 BTU = 0.00000105506 GJ

1 British Thermal Unit (BTU) = 0.00000105506 Gigajoule (GJ)

1 BTU equals 0.00000105506 GJ.

British Thermal Unit to Watt-hour

1 BTU = 0.29307222222222223 Wh

1 British Thermal Unit (BTU) = 0.29307222222222223 Watt-hour (Wh)

1 BTU equals 0.29307222222222223 Wh.

British Thermal Unit to Kilowatt-hour

1 BTU = 0.0002930722222222222 kWh

1 British Thermal Unit (BTU) = 0.0002930722222222222 Kilowatt-hour (kWh)

1 BTU equals 0.0002930722222222222 kWh.

British Thermal Unit to Megawatt-hour

1 BTU = 2.930722222222222e-7 MWh

1 British Thermal Unit (BTU) = 2.930722222222222e-7 Megawatt-hour (MWh)

1 BTU equals 2.930722222222222e-7 MWh.

British Thermal Unit to Erg

1 BTU = 10550600000 erg

1 British Thermal Unit (BTU) = 10550600000 Ergs

1 BTU equals 10550600000 ergs.

British Thermal Unit to Calorie

1 BTU = 252.16539196940724 cal

1 British Thermal Unit (BTU) = 252.16539196940724 Calories (cal)

1 BTU equals 252.16539196940724 cals.

British Thermal Unit to Kilocalorie

1 BTU = 0.25216539196940724 kcal

1 British Thermal Unit (BTU) = 0.25216539196940724 Kilocalorie (kcal)

1 BTU equals 0.25216539196940724 kcal.

British Thermal Unit to Foot-pound force

1 BTU = 778.1723214066789 ft_lbf

1 British Thermal Unit (BTU) = 778.1723214066789 Foot-pound forces (ft⋅lbf)

1 BTU equals 778.1723214066789 ft_lbves.

British Thermal Unit to Horsepower-hour

1 BTU = 0.00039301669536829153 hp_h

1 British Thermal Unit (BTU) = 0.00039301669536829153 Horsepower-hour (hp⋅h)

1 BTU equals 0.00039301669536829153 hp_h.

British Thermal Unit to Therm

1 BTU = 0.000009999999999999999 therm_us

1 British Thermal Unit (BTU) = 0.000009999999999999999 Therm (US)

1 BTU equals 0.000009999999999999999 therm_us.

British Thermal Unit to Electronvolt

1 BTU = 6.585166564100572e+21 eV

1 British Thermal Unit (BTU) = 6.585166564100572e+21 Electronvolts (eV)

1 BTU equals 6.585166564100572e+21 eVs.

British Thermal Unit to Kiloelectronvolt

1 BTU = 6585166564100572000 keV

1 British Thermal Unit (BTU) = 6585166564100572000 Kiloelectronvolts (keV)

1 BTU equals 6585166564100572000 keVs.

British Thermal Unit to Megaelectronvolt

1 BTU = 6585166564100572 MeV

1 British Thermal Unit (BTU) = 6585166564100572 Megaelectronvolts (MeV)

1 BTU equals 6585166564100572 MeVs.

British Thermal Unit to Gigaelectronvolt

1 BTU = 6585166564100.571 GeV

1 British Thermal Unit (BTU) = 6585166564100.571 Gigaelectronvolts (GeV)

1 BTU equals 6585166564100.571 GeVs.

British Thermal Unit to Tonne of Oil Equivalent

1 BTU = 2.5199675169580585e-8 toe

1 British Thermal Unit (BTU) = 2.5199675169580585e-8 Tonne of Oil Equivalent (toe)

1 BTU equals 2.5199675169580585e-8 toe.

British Thermal Unit to Tonne of Coal Equivalent

1 BTU = 3.599953595654369e-8 tce

1 British Thermal Unit (BTU) = 3.599953595654369e-8 Tonne of Coal Equivalent (tce)

1 BTU equals 3.599953595654369e-8 tce.

British Thermal Unit to Hartree

1 BTU = 242000407644482630000 hartree

1 British Thermal Unit (BTU) = 242000407644482630000 Hartrees

1 BTU equals 242000407644482630000 hartrees.

Convert Joule to Other Units

Joule to Kilojoule

1 J = 0.001 kJ

1 Joule (J) = 0.001 Kilojoule (kJ)

1 J equals 0.001 kJ.

Joule to Megajoule

1 J = 0.000001 MJ

1 Joule (J) = 0.000001 Megajoule (MJ)

1 J equals 0.000001 MJ.

Joule to Gigajoule

1 J = 1e-9 GJ

1 Joule (J) = 1e-9 Gigajoule (GJ)

1 J equals 1e-9 GJ.

Joule to Watt-hour

1 J = 0.0002777777777777778 Wh

1 Joule (J) = 0.0002777777777777778 Watt-hour (Wh)

1 J equals 0.0002777777777777778 Wh.

Joule to Kilowatt-hour

1 J = 2.7777777777777776e-7 kWh

1 Joule (J) = 2.7777777777777776e-7 Kilowatt-hour (kWh)

1 J equals 2.7777777777777776e-7 kWh.

Joule to Megawatt-hour

1 J = 2.7777777777777777e-10 MWh

1 Joule (J) = 2.7777777777777777e-10 Megawatt-hour (MWh)

1 J equals 2.7777777777777777e-10 MWh.

Joule to Erg

1 J = 10000000 erg

1 Joule (J) = 10000000 Ergs

1 J equals 10000000 ergs.

Joule to Calorie

1 J = 0.2390057361376673 cal

1 Joule (J) = 0.2390057361376673 Calorie (cal)

1 J equals 0.2390057361376673 cal.

Joule to Kilocalorie

1 J = 0.0002390057361376673 kcal

1 Joule (J) = 0.0002390057361376673 Kilocalorie (kcal)

1 J equals 0.0002390057361376673 kcal.

Joule to British Thermal Unit

1 J = 0.0009478133944988911 BTU

1 Joule (J) = 0.0009478133944988911 British Thermal Unit (BTU)

1 J equals 0.0009478133944988911 BTU.

Joule to Foot-pound force

1 J = 0.7375621494575464 ft_lbf

1 Joule (J) = 0.7375621494575464 Foot-pound force (ft⋅lbf)

1 J equals 0.7375621494575464 ft_lbf.

Joule to Horsepower-hour

1 J = 3.7250648813175704e-7 hp_h

1 Joule (J) = 3.7250648813175704e-7 Horsepower-hour (hp⋅h)

1 J equals 3.7250648813175704e-7 hp_h.

Joule to Therm

1 J = 9.478133944988911e-9 therm_us

1 Joule (J) = 9.478133944988911e-9 Therm (US)

1 J equals 9.478133944988911e-9 therm_us.

Joule to Electronvolt

1 J = 6241509074460763000 eV

1 Joule (J) = 6241509074460763000 Electronvolts (eV)

1 J equals 6241509074460763000 eVs.

Joule to Kiloelectronvolt

1 J = 6241509074460763 keV

1 Joule (J) = 6241509074460763 Kiloelectronvolts (keV)

1 J equals 6241509074460763 keVs.

Joule to Megaelectronvolt

1 J = 6241509074460.763 MeV

1 Joule (J) = 6241509074460.763 Megaelectronvolts (MeV)

1 J equals 6241509074460.763 MeVs.

Joule to Gigaelectronvolt

1 J = 6241509074.460762 GeV

1 Joule (J) = 6241509074.460762 Gigaelectronvolts (GeV)

1 J equals 6241509074.460762 GeVs.

Joule to Tonne of Oil Equivalent

1 J = 2.3884589662749594e-11 toe

1 Joule (J) = 2.3884589662749594e-11 Tonne of Oil Equivalent (toe)

1 J equals 2.3884589662749594e-11 toe.

Joule to Tonne of Coal Equivalent

1 J = 3.412084237535656e-11 tce

1 Joule (J) = 3.412084237535656e-11 Tonne of Coal Equivalent (tce)

1 J equals 3.412084237535656e-11 tce.

Joule to Hartree

1 J = 229371227839632480 hartree

1 Joule (J) = 229371227839632480 Hartrees

1 J equals 229371227839632480 hartrees.