Electronvolt Converter Calculator

Work out electronvolt converter instantly with clear inputs, formula shown and shareable results.

About Electronvolt Converter Calculator

Each energy unit is defined as a multiple of the joule, so the conversion runs in two steps: multiply by the source unit's factor to reach joule, then divide by the target unit's factor. One factor per unit covers every pair in the list. Since the 2019 SI redefinition the electronvolt is exactly 1.602176634×10⁻¹⁹ J, because the elementary charge is now a defined constant.

Formulas

Two-step conversion

result = value × factor(from) ÷ factor(to)

Base value

base (joule) = value × factor(from)

Worked example

With the default values below, Electronvolt Converter Calculator returns Converted Value of 1.602176630000 × 10⁻¹⁹. Change any input above and every figure here is recalculated in your browser.

Inputs used

Value: 1
From unitone of Joule (J), Kilojoule (kJ), Megajoule (MJ), Calorie (cal), Kilocalorie (kcal / food Calorie), Watt-hour (Wh), Kilowatt-hour (kWh), British thermal unit (BTU), Therm (100,000 BTU), Foot-pound force (ft·lbf), Electronvolt (eV): Electronvolt (eV)
To unitone of Joule (J), Kilojoule (kJ), Megajoule (MJ), Calorie (cal), Kilocalorie (kcal / food Calorie), Watt-hour (Wh), Kilowatt-hour (kWh), British thermal unit (BTU), Therm (100,000 BTU), Foot-pound force (ft·lbf), Electronvolt (eV): Joule (J)

Results

Converted Value: 1.602176630000 × 10⁻¹⁹
Result Unit: Joule (J)
Value in joule (base): 1.602176630000 × 10⁻¹⁹
Multiplier Applied: 1.60217663 × 10⁻¹⁹

Step by step

1Values used
2Two-step conversion
3Base value
4Converted Value= 0.000000000000
5Result Unit= Joule (J)
6Value in joule (base)= 0.000000000000
7Multiplier Applied= 0.00000000

Assumptions and limits

The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 12 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why route through joule?

With 11 units, direct pairs would mean 110 factors to maintain. Going via joule needs one factor per unit and gives the same answer.

Does the dropdown order matter?

Yes. The first is the unit your figure is already in; the second is what you want it in. Swapping them inverts the result.