eV to Therms Converter

How to convert electronvolts to therms

Formulathm = eV × 1.518933028×10⁻²⁷

Multiply the value in electronvolts by 1.518933028×10⁻²⁷. To go the other way, multiply by 6.583568738×10²⁶ (or divide by 1.518933028×10⁻²⁷).

An electronvolt is smaller than a therm: it takes 6.583568738×10²⁶ electronvolts to make one therm.

Worked examples

1 electronvolt1 eV × 1.518933028×10⁻²⁷ = 1.518933028×10⁻²⁷ thm
5 electronvolts5 eV × 1.518933028×10⁻²⁷ = 7.594665142×10⁻²⁷ thm
10 electronvolts10 eV × 1.518933028×10⁻²⁷ = 1.518933028×10⁻²⁶ thm
20 electronvolts20 eV × 1.518933028×10⁻²⁷ = 3.037866057×10⁻²⁶ thm
100 electronvolts100 eV × 1.518933028×10⁻²⁷ = 1.518933028×10⁻²⁵ thm

Electronvolts to therms conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Electronvolts to therms: 0.1–10 eV
Electronvolts (eV)	Therms (thm)
0.1 eV	1.518933×10⁻²⁸ thm
0.25 eV	3.7973326×10⁻²⁸ thm
0.5 eV	7.5946651×10⁻²⁸ thm
1 eV	1.518933×10⁻²⁷ thm
2 eV	3.0378661×10⁻²⁷ thm
3 eV	4.5567991×10⁻²⁷ thm
4 eV	6.0757321×10⁻²⁷ thm
5 eV	7.5946651×10⁻²⁷ thm
6 eV	9.1135982×10⁻²⁷ thm
7 eV	1.0632531×10⁻²⁶ thm
8 eV	1.2151464×10⁻²⁶ thm
9 eV	1.3670397×10⁻²⁶ thm
10 eV	1.518933×10⁻²⁶ thm

Electronvolts to therms: 12–1,000 eV
Electronvolts (eV)	Therms (thm)
12 eV	1.8227196×10⁻²⁶ thm
15 eV	2.2783995×10⁻²⁶ thm
20 eV	3.0378661×10⁻²⁶ thm
25 eV	3.7973326×10⁻²⁶ thm
30 eV	4.5567991×10⁻²⁶ thm
40 eV	6.0757321×10⁻²⁶ thm
50 eV	7.5946651×10⁻²⁶ thm
75 eV	1.1391998×10⁻²⁵ thm
100 eV	1.518933×10⁻²⁵ thm
250 eV	3.7973326×10⁻²⁵ thm
500 eV	7.5946651×10⁻²⁵ thm
1,000 eV	1.518933×10⁻²⁴ thm

About the units

Electronvolt (eV)

The energy an electron gains across one volt: exactly 1.602176634 × 10⁻¹⁹ J. One electronvolt equals 1.602176634×10⁻¹⁹ joules (J).

Therm (thm)

The US therm is 105,480,400 J, about 100,000 BTU. US gas utilities bill by the therm.

Frequently asked questions

How many therms are in one electronvolt?

There are 1.518933028×10⁻²⁷ therms in one electronvolt, and this value is exact by definition.

How do I convert electronvolts to therms?

Multiply the number of electronvolts by 1.518933028×10⁻²⁷. For example, 10 eV × 1.518933028×10⁻²⁷ = 1.518933028×10⁻²⁶ thm.

How many electronvolts are in one therm?

One therm equals 6.583568738×10²⁶ electronvolts. That is the reverse factor, 1 ÷ 1.518933028×10⁻²⁷.

What is 10 electronvolts in therms?

10 eV = 1.518933028×10⁻²⁶ thm.

Is this eV to thm converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.