Energy conversion

Electron-volts to joules conversion

Convert electron-volts (eV) to joules (J). Exact CODATA: 1 eV = 1.602176634×10⁻¹⁹ J. Free online tool — no sign-up. Runs locally in your browser.

Instant result

Result

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Formulas

Core equations used by this converter.

eV → JJ = eV × 0

Exact factor1 eV = 0 J

J → eVeV = J × 6241509074460763136

iLinear conversion using factor 0. Prefer the exact factor over rounded multipliers when precision matters.

How to use

Choose eV → J or J → eV

Use the tabs to switch direction. Forward mode needs electronvolts; reverse uses the opposite unit.

Enter the value

Type a non-negative value in the active unit field.

Convert and read the result

Use Convert or let the result update automatically.

Example conversions

Common values with formula and result.

1 eV to joules

1 × 1.602176634×10⁻¹⁹ = 1.602176634×10⁻¹⁹ J

1.602176634×10⁻¹⁹ J

1000 eV (= 1 keV) to joules

1000 × 1.602176634×10⁻¹⁹ = 1.602176634×10⁻¹⁶ J

1.602176634×10⁻¹⁶ J

1×10¹⁹ eV to joules

1×10¹⁹ × 1.602176634×10⁻¹⁹ ≈ 1.602 J

Reverse: 1.602176634×10⁻¹⁹ J → eV

1 eV

Electron-volts to joules conversion specification

Version 1.1.0 · Engine tested

Calculation status

Engine tested 4 published cases
Named expert review Not performed
Calculation version 1.1.0

Review policy

Definition: Electronvolts (eV) converts to J using a fixed linear factor. Convert electron-volts (eV) to joules (J). Exact CODATA: 1 eV = 1.602176634×10⁻¹⁹ J. Formula and chart.
What it calculates: Value between eV and J. Switch direction with the converter tabs.
Inputs: Electronvolts (eV) or reverse unit (J)
Outputs: Converted value in J or eV
Formula: J = eV × 0 · 1 eV = 0 J
Electron-volts to joules conversion table: eV Joules (J)
1 eV 1.602176634×10⁻¹⁹ J
10 eV 1.602176634×10⁻¹⁸ J
100 eV 1.602176634×10⁻¹⁷ J
1 keV 1.602176634×10⁻¹⁶ J
1 MeV 1.602176634×10⁻¹³ J
1 GeV 1.602176634×10⁻¹⁰ J
Assumptions: Conversion runs locally in the browser; values are not uploaded.
Uses the standard factor/definition for these units.
Units: eV → J
J → eV
Boundary conditions: Empty or non-numeric input yields no valid result.
Non-negative values are expected for physical quantities.
Example: 1 eV → 0 J
Validation cases: 1 eV → 0 J
10 eV → 0 J
50 eV → 0 J
100 eV → 0 J
Sources: SI / international unit definitions where applicable
CalculatorX conversion factors (local runtime)
Calculation version: 1.1.0

eV	Joules (J)
1 eV	1.602176634×10⁻¹⁹ J
10 eV	1.602176634×10⁻¹⁸ J
100 eV	1.602176634×10⁻¹⁷ J
1 keV	1.602176634×10⁻¹⁶ J
1 MeV	1.602176634×10⁻¹³ J
1 GeV	1.602176634×10⁻¹⁰ J

Background

Interpretation and common distinctions.

Use the converter tabs to switch direction when available. Results for Electron-volts to joules conversion update locally in your browser.

Frequently asked questions

Key distinctions behind the conversion.

How do you convert using Electron-volts to joules conversion?

Use 1 eV = 1.602176634e-19 J. Example: 1 eV to joules → 1.602176634×10⁻¹⁹ J.

Can I switch direction?

Use the converter tabs when available, or open the related reverse tool from Related.

Does this run online or locally?

Calculation runs locally in your browser. Values are not uploaded.

How precise are the results?

Results follow the formulas on this page. Round to the precision your use case needs.