Convert Gigajoule to British Thermal Unit Online

About Gigajoule to British Thermal Unit Conversion

This converter converts Gigajoule (GJ) to British Thermal Unit (BTU). One Gigajoule (GJ) equals 947813.3944988911 British Thermal Unit (BTU).

Formula:

1 Gigajoule (GJ) = 947813.3944988911 British Thermal Unit (BTU)

Example:

1 GJ = 947813.3944988911 BTU
2 GJ = 1895626.7889977822 BTU

Gigajoule (GJ) to British Thermal Unit (BTU) Conversion

A clear guide to converting Gigajoule into British. Includes numeric examples, formulas, and a breakdown of where this conversion appears in science, engineering, and daily applications.

Conversion Formula

British = Gigajoule × 947813.394499

To convert Gigajoule (GJ) to British Thermal Unit (BTU), multiply the value by 947813.394499. This factor is obtained by comparing their exact meter definitions.

Worked Example

Convert 1 GJ to BTU.

  • Step 1: Write the formula: BTU = GJ × 947813.394499
  • Step 2: Substitute: 1 × 947813.394499
  • Step 3: Result: 947813.394499 BTU
So, 1 GJ = 947813.394499 BTU.

About the Units

Gigajoule (GJ)

One Gigajoule (GJ) equals 947813.394499 British Thermal Unit (BTU)

Used for extremely large distances such as astronomical or planetary scales.

British Thermal Unit (BTU)

One British Thermal Unit (BTU) equals 1.055060e-6 Gigajoule (GJ)

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

Where This Conversion Is Used

  • Converting values from Gigajoule to British for engineering or scientific workflows.
  • Used when normalizing mixed-unit datasets requiring consistent British representation.
  • Applied when comparing different measurement systems across tools and documents.
  • Essential in astronomy, orbital mechanics, and large-scale simulations.

Frequently Asked Questions

How many British Thermal Unit (BTU) are in 1 Gigajoule (GJ)?

1 GJ = 947813.394499 BTU.

What is the formula for converting Gigajoule (GJ) to British Thermal Unit (BTU)?

Multiply the GJ value by 947813.394499.

Can I reverse the conversion?

Yes. 1 BTU = 1.055060e-6 GJ.

Conclusion

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

Quick Links for Unit Converters

Convert Gigajoule to Other Units

Gigajoule to Joule

1 GJ = 1000000000 J

1 Gigajoule (GJ) = 1000000000 Joules (J)

1 GJ equals 1000000000 Js.

Gigajoule to Kilojoule

1 GJ = 1000000 kJ

1 Gigajoule (GJ) = 1000000 Kilojoules (kJ)

1 GJ equals 1000000 kJs.

Gigajoule to Megajoule

1 GJ = 1000 MJ

1 Gigajoule (GJ) = 1000 Megajoules (MJ)

1 GJ equals 1000 MJs.

Gigajoule to Watt-hour

1 GJ = 277777.77777777775 Wh

1 Gigajoule (GJ) = 277777.77777777775 Watt-hours (Wh)

1 GJ equals 277777.77777777775 Whs.

Gigajoule to Kilowatt-hour

1 GJ = 277.77777777777777 kWh

1 Gigajoule (GJ) = 277.77777777777777 Kilowatt-hours (kWh)

1 GJ equals 277.77777777777777 kWhs.

Gigajoule to Megawatt-hour

1 GJ = 0.2777777777777778 MWh

1 Gigajoule (GJ) = 0.2777777777777778 Megawatt-hour (MWh)

1 GJ equals 0.2777777777777778 MWh.

Gigajoule to Erg

1 GJ = 10000000000000000 erg

1 Gigajoule (GJ) = 10000000000000000 Ergs

1 GJ equals 10000000000000000 ergs.

Gigajoule to Calorie

1 GJ = 239005736.1376673 cal

1 Gigajoule (GJ) = 239005736.1376673 Calories (cal)

1 GJ equals 239005736.1376673 cals.

Gigajoule to Kilocalorie

1 GJ = 239005.7361376673 kcal

1 Gigajoule (GJ) = 239005.7361376673 Kilocalories (kcal)

1 GJ equals 239005.7361376673 kcals.

Gigajoule to British Thermal Unit

1 GJ = 947813.3944988911 BTU

1 Gigajoule (GJ) = 947813.3944988911 British Thermal Units (BTU)

1 GJ equals 947813.3944988911 BTUs.

Gigajoule to Foot-pound force

1 GJ = 737562149.4575465 ft_lbf

1 Gigajoule (GJ) = 737562149.4575465 Foot-pound forces (ft⋅lbf)

1 GJ equals 737562149.4575465 ft_lbves.

Gigajoule to Horsepower-hour

1 GJ = 372.506488131757 hp_h

1 Gigajoule (GJ) = 372.506488131757 Horsepower-hours (hp⋅h)

1 GJ equals 372.506488131757 hp_hs.

Gigajoule to Therm

1 GJ = 9.47813394498891 therm_us

1 Gigajoule (GJ) = 9.47813394498891 Therms (US)

1 GJ equals 9.47813394498891 therm_uses.

Gigajoule to Electronvolt

1 GJ = 6.241509074460763e+27 eV

1 Gigajoule (GJ) = 6.241509074460763e+27 Electronvolts (eV)

1 GJ equals 6.241509074460763e+27 eVs.

Gigajoule to Kiloelectronvolt

1 GJ = 6.241509074460763e+24 keV

1 Gigajoule (GJ) = 6.241509074460763e+24 Kiloelectronvolts (keV)

1 GJ equals 6.241509074460763e+24 keVs.

Gigajoule to Megaelectronvolt

1 GJ = 6.241509074460763e+21 MeV

1 Gigajoule (GJ) = 6.241509074460763e+21 Megaelectronvolts (MeV)

1 GJ equals 6.241509074460763e+21 MeVs.

Gigajoule to Gigaelectronvolt

1 GJ = 6241509074460762000 GeV

1 Gigajoule (GJ) = 6241509074460762000 Gigaelectronvolts (GeV)

1 GJ equals 6241509074460762000 GeVs.

Gigajoule to Tonne of Oil Equivalent

1 GJ = 0.023884589662749593 toe

1 Gigajoule (GJ) = 0.023884589662749593 Tonne of Oil Equivalent (toe)

1 GJ equals 0.023884589662749593 toe.

Gigajoule to Tonne of Coal Equivalent

1 GJ = 0.034120842375356564 tce

1 Gigajoule (GJ) = 0.034120842375356564 Tonne of Coal Equivalent (tce)

1 GJ equals 0.034120842375356564 tce.

Gigajoule to Hartree

1 GJ = 2.293712278396325e+26 hartree

1 Gigajoule (GJ) = 2.293712278396325e+26 Hartrees

1 GJ equals 2.293712278396325e+26 hartrees.

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.