Electronvolts to British thermal units converter
1 electronvolt = 1.51857e-22 British thermal units
How to convert electronvolts to British thermal units
BTU = eV × 1.51857044347 × 10^-22
Multiply the number of electronvolts by 1.51857044347 × 10^-22 to get British thermal units. Going the other way, divide by 1.51857044347 × 10^-22 (or multiply by 6.58514067819 × 10^21).
One electronvolt is exactly defined as 1.51857044347 × 10^-22 British thermal units (to 12 significant figures), and one British thermal unit is 6.58514067819 × 10^21 electronvolts.
Worked examples
- Convert 5 electronvolts: 5 × 1.51857044347 × 10^-22 = 7.592852e-22 7.592852e-22 British thermal units.
- Convert 12.5 electronvolts: 12.5 × 1.51857044347 × 10^-22 = 1.898213e-21 1.898213e-21 British thermal units.
- Convert 250 electronvolts: 250 × 1.51857044347 × 10^-22 = 3.796426e-20 3.796426e-20 British thermal units.
Quick-reference table
| eV | BTU |
|---|---|
| 1 | 1.51857e-22 |
| 2 | 3.037141e-22 |
| 3 | 4.555711e-22 |
| 5 | 7.592852e-22 |
| 10 | 1.51857e-21 |
| 15 | 2.277856e-21 |
| 20 | 3.037141e-21 |
| 25 | 3.796426e-21 |
| 50 | 7.592852e-21 |
| 75 | 1.138928e-20 |
| 100 | 1.51857e-20 |
| 1,000 | 1.51857e-19 |
| BTU | eV |
|---|---|
| 1 | 6.585141e+21 |
| 2 | 1.317028e+22 |
| 3 | 1.975542e+22 |
| 5 | 3.29257e+22 |
| 10 | 6.585141e+22 |
| 15 | 9.877711e+22 |
| 20 | 1.317028e+23 |
| 25 | 1.646285e+23 |
| 50 | 3.29257e+23 |
| 75 | 4.938856e+23 |
| 100 | 6.585141e+23 |
| 1,000 | 6.585141e+24 |
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Frequently asked questions
How many British thermal units are in 1 electronvolt?
1 electronvolt equals 1.51857e-22 British thermal units.
What is the formula to convert electronvolts to British thermal units?
Use BTU = eV × 1.51857044347 × 10^-22. Multiply the number of electronvolts by 1.51857044347 × 10^-22 to get British thermal units. Going the other way, divide by 1.51857044347 × 10^-22 (or multiply by 6.58514067819 × 10^21).
What is 100 electronvolts in British thermal units?
100 electronvolts is 1.51857e-20 British thermal units.