British Thermal Units to Gigajoules Converter
Convert British thermal units (IT) (Btu) to gigajoules (GJ), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 Btu = 1.05505585262e-6 GJ
- 1 × 1.05505585262e-6 = 1.05505585262e-6 GJ
How to convert british thermal units to gigajoules
1 Btu = 1.05505585262 × 10⁻⁶ GJ, so multiply by 1.05505585262 to go from British thermal units (IT) to gigajoules. Going the other way, 1 GJ = 947,817.120313 Btu.
GJ = Btu × 1.05505585262 Btu = GJ × 947,817.120313
Worked example:
1 Btu = 1.05505585262e-6 GJ 5 × 1.05505585262e-6 = 5.2752792631e-6 GJ
British Thermal Units to gigajoules table
| British Thermal Units | Gigajoules |
|---|---|
| 1 Btu | 1.05505585262 × 10⁻⁶ GJ |
| 2 Btu | 2.11011170524 × 10⁻⁶ GJ |
| 3 Btu | 3.16516755786 × 10⁻⁶ GJ |
| 4 Btu | 4.22022341048 × 10⁻⁶ GJ |
| 5 Btu | 5.2752792631 × 10⁻⁶ GJ |
| 6 Btu | 6.33033511572 × 10⁻⁶ GJ |
| 7 Btu | 7.38539096834 × 10⁻⁶ GJ |
| 8 Btu | 8.44044682096 × 10⁻⁶ GJ |
| 9 Btu | 9.49550267358 × 10⁻⁶ GJ |
| 10 Btu | 1.05505585262 × 10⁻⁵ GJ |
| 15 Btu | 1.58258377893 × 10⁻⁵ GJ |
| 20 Btu | 2.11011170524 × 10⁻⁵ GJ |
| 25 Btu | 2.63763963155 × 10⁻⁵ GJ |
| 30 Btu | 3.16516755786 × 10⁻⁵ GJ |
| 40 Btu | 4.22022341048 × 10⁻⁵ GJ |
| 50 Btu | 5.2752792631 × 10⁻⁵ GJ |
| 75 Btu | 7.91291889465 × 10⁻⁵ GJ |
| 100 Btu | 0.000105505585262 GJ |
| 250 Btu | 0.000263763963155 GJ |
| 500 Btu | 0.00052752792631 GJ |
| 1000 Btu | 0.00105505585262 GJ |
About the units
- British Thermal Units (Btu)
- British thermal units (IT), a US customary unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
- Gigajoules (GJ)
- Gigajoules, a metric unit. Definition: BIPM SI Brochure, 9th edition (SI units, prefixes and units accepted for use with the SI).
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