Convert energy units — joules, kilowatt-hours, calories, BTU, electron volts and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 therm | 6.584e+23 eV | |
| 0.01 therm | 6.584e+24 eV | |
| 0.1 therm | 6.584e+25 eV | |
| 1 therm | 6.584e+26 eV | |
| 5 therm | 3.292e+27 eV | |
| 10 therm | 6.584e+27 eV | |
| 50 therm | 3.292e+28 eV | |
| 100 therm | 6.584e+28 eV | |
| 1000 therm | 6.584e+29 eV |
Formula: Electron Volt = Therm × 6.5843e26
Multiply any therm value by 6.5843e26 to get electron volt.
Reverse: Therm = Electron Volt × 1.5188e-27
Common therm values — factor: 1 therm = 6.5843e26 eV
| Therm (therm) | Electron Volt (eV) | Context |
|---|---|---|
| 0.001 therm | 6.584e+23 eV | 0.1 kWh |
| 0.01 therm | 6.584e+24 eV | 1 kWh |
| 0.1 therm | 6.584e+25 eV | 3 kWh |
| 1 therm | 6.584e+26 eV | 29.3 kWh |
| 10 therm | 6.584e+27 eV | Monthly gas fraction |
| 50 therm | 3.292e+28 eV | Half winter month |
| 100 therm | 6.584e+28 eV | Monthly winter gas |
| 500 therm | 3.292e+29 eV | Seasonal heating |
| 1,000 therm | 6.584e+29 eV | Annual home gas |
| 1e+04 therm | 6.584e+30 eV | Commercial building |
| 1e+05 therm | 6.584e+31 eV | Large industrial |
| 1e+06 therm | 6.584e+32 eV | Utility scale |
| 1.000e+09 therm | 6.584e+35 eV | Regional supply |
| 1.000e+12 therm | 6.584e+38 eV | National supply |
| 1.000e+15 therm | 6.584e+41 eV | Global scale |
1 therm = 6.5843e26 eV. Memorize for instant estimates.
Use 6.5843e26 as a quick mental multiplier.
Multiply result by 1.5188e-27 to recover the original therm value.
Bills residential and commercial customers in therms per billing cycle.
Calculates annual gas consumption for boilers and furnaces in therms.
Trades natural gas contracts denominated in therms or MMBTU.
Monitors and benchmarks gas use in therms per square foot per year.
Sizes gas pipes and appliances based on BTU/hour and therm ratings.
Models household and industrial gas demand in therms per year.
The therm is a unit of natural gas energy equal to 100,000 BTU (105,480,400 joules). It is the standard billing unit for natural gas in the United States and United Kingdom. The name comes from the Greek thermos (heat).
Gas utilities bill residential and commercial customers in therms in the US and UK. A typical US household uses about 50–100 therms per month in winter. Natural gas furnaces and water heaters are rated in therms per hour.
Interesting fact: One therm of natural gas costs about $1.00–$2.00 in the US. Burning one therm releases about 5.3 kg of CO₂. The US consumes about 28 trillion therms of natural gas equivalent energy per year.
The electron volt (eV) is the energy gained by a single electron accelerating through a potential difference of one volt, equal to approximately 1.602 × 10⁻¹⁹ joules. It was formally adopted as a unit by the IEC in 1930.
Electron volts are the standard energy unit in atomic physics, particle physics, and semiconductor engineering. Chemical bond energies are a few eV; X-ray photons are kiloelectron volts (keV); particle accelerators measure GeV and TeV.
Interesting fact: The Large Hadron Collider accelerates protons to 6.8 TeV (6.8 × 10¹² eV). Visible light photons have energies of 1.8–3.1 eV. The rest mass energy of an electron is 511 keV.
Converting therm to electron volt is common across energy, nutrition, engineering, and science. Different sectors use different energy units — joules in physics, kcal in nutrition, kWh in electricity, and BTU in HVAC — making accurate conversion essential for cross-disciplinary work and international comparisons.
Quick reference: 5 therm = 3.2921e27 eV and 10 therm = 6.5843e27 eV. Reverse: 1 eV = 1.5188e-27 therm. Exact factor: 1 therm = 6.5843e26 eV.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.