Gigajoules to Electronvolts Converter
Enter the energy in gigajoules below to convert it to electronvolts.
Convert Gigajoules to Electronvolts
Enter a value in gigajoules (GJ) to convert to electronvolts (eV).
Gigajoule to Electronvolt Conversion Table
Table showing various gigajoule measurements converted to electronvolts. Click any preset value or arrow to load it into the converter.
| Gigajoules (GJ) | Electronvolts (eV) |
|---|---|
| 0.0000001 GJ | 6.241509e+20 eV |
| 0.0000002 GJ | 1.248302e+21 eV |
| 0.0000003 GJ | 1.872453e+21 eV |
| 0.0000004 GJ | 2.496604e+21 eV |
| 0.0000005 GJ | 3.120755e+21 eV |
| 0.0000006 GJ | 3.744905e+21 eV |
| 0.0000007 GJ | 4.369056e+21 eV |
| 0.0000008 GJ | 4.993207e+21 eV |
| 0.0000009 GJ | 5.617358e+21 eV |
| 0.00000001 GJ | 6.241509e+19 eV |
How to Convert Gigajoules to Electronvolts
To convert gigajoules to electronvolts, multiply the energy by the following conversion ratio: 6.241509e+27 electronvolts/gigajoule.
Since one gigajoule is equal to 6.241509e+27 electronvolts, you can use this simple formula to convert:
The energy in electronvolts is equal to the energy in gigajoules multiplied by 6.241509e+27.
For example, here's how to convert 5 gigajoules to electronvolts using the formula above.
How Many Electronvolts Are in a Gigajoule?
There are 6.241509e+27 electronvolts in a gigajoule, which is why we use this value in the formula above.
Our gigajoule to electronvolt calculator automatically converts your energy measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Gigajoules and electronvolts are both units used to measure energy. Keep reading to learn more about each unit.
What Is a Gigajoule?
A gigajoule is a unit of energy equal to 1,000,000,000 joules (J), the base unit for energy. Equal to 1,000,000,000 Joules, common in natural gas billing. [1]
The gigajoule is classified as an International System of Units (SI) unit of energy. Gigajoules can be abbreviated as GJ; for example, 1 gigajoule can be written as 1 GJ.
In the metric system, "giga" is the standard SI prefix for billions, or 10⁹. This makes the gigajoule (GJ) a convenient decimal multiple of the joule (J).
In practice, gigajoules (GJ) are widely used across large-scale industrial, bulk, and macro-level energy specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
What Is an Electronvolt?
An electronvolt is a unit of energy equal to 1/6,241,509,074,460,763,000 of a joule (1.602177e-19 J). Atomic energy unit equal to 1.602176634×10⁻¹⁹ Joules. [2]
The electronvolt is classified as an International System of Units (SI) unit of energy. Electronvolts can be abbreviated as eV; for example, 1 electronvolt can be written as 1 eV.
When working with electronvolts (eV) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, electronvolts (eV) are widely used across fine-tolerance laboratory, analytical, and micro-scale energy measurements within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting energy between gigajoules (GJ) and electronvolts (eV), keep full floating-point precision (1 GJ = 6.241509e+27 eV; 1 eV = 1.602177e-28 GJ) during intermediate calculations and round only the final electronvolt figure to match your instrument tolerance.
More Gigajoule & Electronvolt Conversions
Need to calculate in the opposite direction? Use our electronvolts to gigajoules calculator to switch your starting unit immediately. You can also explore related tools such as converting electronvolts to gigajoules, converting joules to calories, or converting calories to joules.
Convert from Gigajoules
Frequently Asked Questions
References
- [1]NIST CODATA StandardNIST CODATA (CODATA Energy & Thermodynamic Constants)·Energy Metrology Standard — Gigajoules (GJ) to Electronvolts (eV)
- [2]NIST SP 811 SpecificationNIST SP 811 (NIST SP 811 App. B.9 (Energy, Work & Heat))·Unit Specifications: Gigajoule (GJ) & Electronvolt (eV)
- [3]BIPM ReferenceBIPM (Derived SI Unit: Joule (J))·Conversion Factors & Mathematical Basis (GJ to eV)