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Electronvolts to Therms Converter

Convert electronvolts (eV) to therms (100,000 Btu) (thm), with the formula, a conversion table and exact factors.

Change the values and press Calculate to work out your own figures.

Enter an amount of energy, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.

A number, fraction (3/8), mixed number (1 1/2), scientific notation (2.5e6) or a simple sum such as 2*3.
The unit you want the answer in. Swap exchanges the two units.
Result
1.51857044347 × 10⁻²⁷ thm
joules (watt-seconds)
1.602176634 × 10⁻¹⁹ J
kilojoules
1.602176634 × 10⁻²² kJ
megajoules
1.602176634 × 10⁻²⁵ MJ
gigajoules
1.602176634 × 10⁻²⁸ GJ
calories (thermochemical)
3.82929405832 × 10⁻²⁰ cal
kilocalories (food Calories)
3.82929405832 × 10⁻²³ kcal
megacalories
3.82929405832 × 10⁻²⁶ Mcal
watt-hours
4.45049065 × 10⁻²³ Wh
kilowatt-hours
4.45049065 × 10⁻²⁶ kWh
megawatt-hours
4.45049065 × 10⁻²⁹ MWh
British thermal units (IT)
1.51857044347 × 10⁻²² Btu
million Btu
1.51857044347 × 10⁻²⁸ MMBtu
quads (10¹⁵ Btu)
1.51857044347 × 10⁻³⁷ quad
kiloelectronvolts
0.001 keV
megaelectronvolts
1 × 10⁻⁶ MeV

1 eV = 1.51857044347 × 10⁻²⁷ thm

Show the working
  1. 1 eV = 1.51857044347e-27 thm
  2. 1 × 1.51857044347e-27 = 1.51857044347e-27 thm

How to convert electronvolts to therms

1 eV = 1.51857044347 × 10⁻²⁷ thm, so multiply by 1.51857044347 to go from electronvolts to therms (100,000 Btu). Going the other way, 1 thm = 6.58514067819 × 10²⁶ eV.

thm = eV × 1.51857044347
eV = thm × 6.58514067819

Worked example:

1 eV = 1.51857044347e-27 thm
5 × 1.51857044347e-27 = 7.59285221736e-27 thm

Electronvolts to therms table

ElectronvoltsTherms
1 eV1.51857044347 × 10⁻²⁷ thm
2 eV3.03714088694 × 10⁻²⁷ thm
3 eV4.55571133041 × 10⁻²⁷ thm
4 eV6.07428177388 × 10⁻²⁷ thm
5 eV7.59285221736 × 10⁻²⁷ thm
6 eV9.11142266083 × 10⁻²⁷ thm
7 eV1.06299931043 × 10⁻²⁶ thm
8 eV1.21485635478 × 10⁻²⁶ thm
9 eV1.36671339912 × 10⁻²⁶ thm
10 eV1.51857044347 × 10⁻²⁶ thm
15 eV2.27785566521 × 10⁻²⁶ thm
20 eV3.03714088694 × 10⁻²⁶ thm
25 eV3.79642610868 × 10⁻²⁶ thm
30 eV4.55571133041 × 10⁻²⁶ thm
40 eV6.07428177388 × 10⁻²⁶ thm
50 eV7.59285221736 × 10⁻²⁶ thm
75 eV1.1389278326 × 10⁻²⁵ thm
100 eV1.51857044347 × 10⁻²⁵ thm
250 eV3.79642610868 × 10⁻²⁵ thm
500 eV7.59285221736 × 10⁻²⁵ thm
1000 eV1.51857044347 × 10⁻²⁴ thm

About the units

Electronvolts (eV)
Electronvolts, a specialised unit. Definition: NIST CODATA: elementary charge (exact since the 2019 SI redefinition).
Therms (thm)
Therms (100,000 Btu), a US customary unit. The EC/IT therm; the US therm is 105,480,400 J, 0.02% smaller. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.

Formula version 0.1.0Reviewed