Convert Btu to Hartree - Free Calculator
Fast, accurate energy conversion calculator. Convert btu to hartree instantly with precise results.
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How to Convert Btu to Hartree
Use this free online calculator to convert Btu to Hartree instantly. This energy conversion tool provides accurate results for all your measurement needs.
Quick Reference
Btu to Hartree Conversion Formula
To convert Btu to Hartree, multiply by 241999274178265645056.00.
To convert Hartree back to Btu, divide by 241999274178265645056.00 (or multiply by 4.132e-21).
About These Units
About Btu
The Btu is a unit of heat energy defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. In America the British thermal unit is sometimes called the heat unit. In defining the Btu, it is necessary to specify the temperature of the water; thus there have been several definitions over the years. However, one Btu is equal to about 251.996 (small) calories, or 0.251 996 of the (kilo-)calories counted by dieters. Using the current definition of the calorie (the IT calorie), one Btu equals approximately 778.169 foot pounds, 1.055 056 kilojoules or 0.293 071 watt hour. The symbol BThU has also been used, especially in Britain.
About Hartree
The hartree is a unit of energy used in atomic and moleclar physics, equal to about 4.3598 x 10E-18 joule or 27.212 electron volts. The unit is named for the British physicist and mathematician Douglas R. Hartree (1897-1958).
Btu to Hartree Conversion Table
| Btu | Hartree | Hartree | Btu |
|---|---|---|---|
| 0.1 | 24199927417826566144.00 | 0.1 | 4.132e-22 |
| 0.5 | 120999637089132822528.00 | 0.5 | 2.066e-21 |
| 1 | 241999274178265645056.00 | 1 | 4.132e-21 |
| 2 | 483998548356531290112.00 | 2 | 8.264e-21 |
| 5 | 1.2099963708913282e+21 | 5 | 2.066e-20 |
| 10 | 2.4199927417826564e+21 | 10 | 4.132e-20 |
| 20 | 4.839985483565313e+21 | 20 | 8.264e-20 |
| 25 | 6.049981854456641e+21 | 25 | 1.033e-19 |
| 50 | 1.2099963708913282e+22 | 50 | 2.066e-19 |
| 100 | 2.4199927417826565e+22 | 100 | 4.132e-19 |
| 250 | 6.049981854456642e+22 | 250 | 1.033e-18 |
| 500 | 1.2099963708913283e+23 | 500 | 2.066e-18 |
| 1000 | 2.4199927417826567e+23 | 1000 | 4.132e-18 |
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