Note: Symbols of SI units, multiples and submultiples are given in parentheses in the right hand column.
|
Multiply |
By |
To obtain |
|
ENERGY and WORK |
|
Btu (International Table) |
1,055.056 |
joule (J) |
|
Btu (mean) |
1,055.87 |
joule (J) |
|
|
|
calorie (mean) |
4.19002 |
joule (J) |
|
|
|
foot-pound |
1.355818 |
joule (J) |
|
|
|
foot-poundal |
0.04214011 |
joule (J) |
|
|
|
joule |
0.0009478170 |
Btu (International Table) |
|
joule |
0.0009470863 |
Btu (mean) |
|
joule |
0.2386623 |
calorie (mean) |
|
joule |
0.7375621 |
foot-pound |
|
joule |
23.73036 |
foot-poundal |
|
joule |
0.9998180 |
joule (International US) |
|
joule |
0.9999830 |
joule (US legal, 1948) |
|
|
|
joule (International US) |
1.000182 |
joule (J) |
|
|
|
joule (US legal, 1948) |
1.000017 |
joule (J) |
|
|
|
joule |
0.0002777778 |
watt-hour |
|
|
|
watt-hour |
3600.* |
joule (J) |
* Where an asterisk is shown, the figure is exact