Convert electronvolts to therms

1 eV=1.5186e-27thm

Use the converter below to change any electronvolts value into therms instantly — with formula, conversion table, and real-world examples.

You have

Equals

1.5186e-27

Conversion formula

Forward

therms = electronvolts × 1.5186e-27

Reverse

electronvolts = therms × 6.5851e26

Example: 10 eV × 1.5186e-27 = 1.5186e-26 thm.

About both units

From

Electronvolt

The electronvolt equals 1.602 × 10⁻¹⁹ joules — the energy gained by an electron accelerated through 1 volt. It is the natural energy unit of atomic, nuclear and particle physics. Chemical bonds are a few eV; LHC protons reach 7 TeV = 7 × 10¹² eV.

Real-world: Silicon band gap: 1.12 eV. Hydrogen ionization: 13.6 eV. LHC proton: 7 TeV. Photon wavelength 500 nm = 2.5 eV.

Read full electronvolt reference →

Therm

thm

The therm equals 100,000 BTU or 105.5 megajoules. Used in US and UK natural-gas billing. A typical UK home uses 200–500 therms per year for heating.

Real-world: UK home heating: 200–500 therms/year. 1 therm = about $1.50 US (2024) or £1.00 UK.

Read full therm reference →

Electronvolt to Therm conversion table

Common electronvolts to therms values for quick reference.

Electronvolt (eV)	Therm (thm)
1 eV	1.5186e-27 thm
10 eV	1.5186e-26 thm
100 eV	1.5186e-25 thm
500 eV	7.5929e-25 thm
1,000 eV	1.5186e-24 thm
5,000 eV	7.5929e-24 thm
10,000 eV	1.5186e-23 thm
50,000 eV	7.5929e-23 thm
100,000 eV	1.5186e-22 thm
500,000 eV	7.5929e-22 thm

Tips & common mistakes

Quick tips

1 eV ≈ 1.602 × 10⁻¹⁹ J.
Particle physics scales: eV → keV → MeV → GeV → TeV (1000× each).
Photon energy (eV) × wavelength (nm) ≈ 1240.

Avoid these

Confusing eV with V (volt) — eV is energy, V is electric potential.
Mixing scales: treating MeV as twice eV — it's a million times larger.
Using eV for macroscopic energy — unwieldy numbers.

Frequently asked questions

How many therms in a electronvolt?

One electronvolt equals 1.5186e-27 therms.

How do I convert electronvolts to therms?

Multiply the electronvolt value by 1.5186e-27 to get the equivalent in therms.

What is 100 electronvolts in therms?

100 electronvolts equals 1.5186e-25 therms.

Is a electronvolt bigger than a therm?

No. 1 electronvolt equals 1.5186e-27 therms, so one electronvolt is smaller.

How to convert electronvolts to therms without a calculator?

Multiply by 0 for a quick estimate; use a calculator for precise results.

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