Convert gigajoules to british thermal units
1 GJ = 947817.120313 BTU — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
More converter tools
Readable results
Ranges, ± tolerances, feet/inches and clock durations work in the value field.
Unit picker
Export this result
Show this value in all 39 energy & work units
- Petajoules PJ 0.000 001
- Terajoules TJ 0.001
- Gigajoules GJ 1
- Megajoules MJ 1000
- Kilojoules kJ 1 000 000
- Joules J 1 000 000 000
- Millijoules mJ 1 000 000 000 000
- Microjoules µJ 1 000 000 000 000 000
- Nanojoules nJ 1e+18
- Watt-hours Wh 277 777.777 778
- Kilowatt-hours kWh 277.777 777 778
- Megawatt-hours MWh 0.277 777 777 778
- Gigawatt-hours GWh 0.000 277 777 777 778
- Terawatt-hours TWh 0.000 000 277 777 777 778
- Calorie (thermochemical)s cal 239 005 736.138
- Kilocalories kcal 239 005.736 138
- Calorie (IT)s cal (IT) 238 845 896.627
- Kilocalorie (IT)s kcal (IT) 238 845.896 627
- British thermal units BTU 947 817.120 313
- BTU (thermochemical)s BTU (th) 948 451.652 677
- Million BTUs MMBTU 0.947 817 120 313
- Therm (US)s thm 9.480 434 279 73
- Therm (EC)s thm (EC) 9.478 169 879 13
- Electronvolts eV 6.24150907446e+27
- Kiloelectronvolts keV 6.24150907446e+24
- Megaelectronvolts MeV 6.24150907446e+21
- Gigaelectronvolts GeV 6.24150907446e+18
- Teraelectronvolts TeV 6 241 509 074 460 000
- Ergs erg 1e+16
- Foot-pounds ft·lbf 737 562 149.277
- Inch-pounds in·lbf 8 850 745 791.33
- Foot-poundals ft·pdl 23 730 360 404.2
- Horsepower-hours hp·h 372.506 135 999
- Tonne of TNTs t TNT 0.239 005 736 138
- Kiloton of TNTs kt TNT 0.000 239 005 736 138
- Megaton of TNTs Mt TNT 0.000 000 239 005 736 138
- Hartrees Eₕ 2.2937122784e+26
- Rydbergs Ry 4.58742455679e+26
- Quads quad 9.47817120313e-10
Every row is Gigajoule (GJ) converted through the joule, in exact rational arithmetic.
How to convert gigajoules to british thermal units
Multiply the number of gigajoules by 947817.120313 to get british thermal units.
British thermal unit: International Table BTU, exactly 1055.055 852 62 J. HVAC capacity is quoted in BTU/h.
Gigajoule to British thermal unit conversion table
| Gigajoules (GJ) | British thermal units (BTU) |
|---|---|
| 1 GJ | 947 817.12 |
| 2 GJ | 1 895 634.2 |
| 3 GJ | 2 843 451.4 |
| 5 GJ | 4 739 085.6 |
| 10 GJ | 9 478 171.2 |
| 20 GJ | 18 956 342 |
| 25 GJ | 23 695 428 |
| 50 GJ | 47 390 856 |
| 100 GJ | 94 781 712 |
| 250 GJ | 236 954 280 |
| 500 GJ | 473 908 560 |
| 1000 GJ | 947 817 120 |
British thermal unit to Gigajoule conversion table
| British thermal units (BTU) | Gigajoules (GJ) |
|---|---|
| 1 BTU | 0.000 001 055 055 9 |
| 2 BTU | 0.000 002 110 111 7 |
| 3 BTU | 0.000 003 165 167 6 |
| 5 BTU | 0.000 005 275 279 3 |
| 10 BTU | 0.000 010 550 559 |
| 20 BTU | 0.000 021 101 117 |
| 25 BTU | 0.000 026 376 396 |
| 50 BTU | 0.000 052 752 793 |
| 100 BTU | 0.000 105 505 59 |
| 250 BTU | 0.000 263 763 96 |
| 500 BTU | 0.000 527 527 93 |
| 1000 BTU | 0.001 055 055 9 |
Frequently asked
How many british thermal units are in a gigajoule?
One gigajoule equals 947817.1203 british thermal units (GJ → BTU). That figure is exact, not rounded.
How do you convert gigajoules to british thermal units?
Multiply the number of gigajoules by 947817.120313 to get british thermal units.
What is 1 BTU in gigajoules?
One british thermal unit is 0.000001055055853 gigajoules.
What is 10 GJ in BTU?
10 GJ = 9 478 171.2 BTU.
What exactly is a british thermal unit?
International Table BTU, exactly 1055.055 852 62 J. HVAC capacity is quoted in BTU/h.