Please support this site by disabling or whitelisting the Adblock for "justintools.com". I've spent over 10 trillion microseconds (and counting), on this project. This site is my passion, and I regularly adding new tools/apps. Users experience is very important, that's why I use non-intrusive ads. Any feedback is appreciated. Thank you. Justin XoXo :)
| 21 British Thermal Unit 39°F 3.9°C | to common energy units |
|---|---|
| 21 BTU39°F | = 22253.07 joules (J) |
| 21 BTU39°F | = 22.25307 kilojoules (kJ) |
| 21 BTU39°F | = 5318.611376673 calories (cal) |
| 21 BTU39°F | = 5.318611376673 kilocalories (kcal) |
| 21 BTU39°F | = 1.3889244654159E+23 electron volt (eV) |
| 21 BTU39°F | = 6.1814083333333 watt hour (Wh) |
| 21 BTU39°F | = 5.1042148346325E+21 atomic unit of energy (au) |
| 21 BTU39°F | = 5.318611376673E-6 tons of TNT (tTNT) |
| 21 BTU39°F | = 16413.022137217 foot pound force (ft lbf) |
| 21 BTU39°F | = 222530700000 ergs (ergs) |