Skip to content
New Tool

Joules to Electronvolts

1 J = 6.241509 × 10¹⁸ eV. Convert joules (J) to electronvolts (eV) with the converter, the formula and the tables below.

Convert joules to electronvolts

1 joule =

6.241509 × 10¹⁸ eV

electronvolts

eV = J × 6.241509 × 10¹⁸

1 joule in other units

How to convert joules to electronvolts

To convert joules to electronvolts, multiply the number of joules by 6.241509 × 10¹⁸.

eV = J × 6.241509 × 10¹⁸

For example, 5 J = 3.120755 × 10¹⁹ eV.

Joules to electronvolts

Joules (J) Electronvolts (eV)
1 J6.241509 × 10¹⁸ eV
2 J1.248302 × 10¹⁹ eV
3 J1.872453 × 10¹⁹ eV
4 J2.496604 × 10¹⁹ eV
5 J3.120755 × 10¹⁹ eV
10 J6.241509 × 10¹⁹ eV
20 J1.248302 × 10²⁰ eV
25 J1.560377 × 10²⁰ eV
50 J3.120755 × 10²⁰ eV
100 J6.241509 × 10²⁰ eV
250 J1.560377 × 10²¹ eV
500 J3.120755 × 10²¹ eV
1,000 J6.241509 × 10²¹ eV

Electronvolts to joules

Electronvolts (eV) Joules (J)
1 eV1.602177 × 10⁻¹⁹ J
2 eV3.204353 × 10⁻¹⁹ J
3 eV4.80653 × 10⁻¹⁹ J
4 eV6.408707 × 10⁻¹⁹ J
5 eV8.010883 × 10⁻¹⁹ J
10 eV1.602177 × 10⁻¹⁸ J
20 eV3.204353 × 10⁻¹⁸ J
25 eV4.005442 × 10⁻¹⁸ J
50 eV8.010883 × 10⁻¹⁸ J
100 eV1.602177 × 10⁻¹⁷ J
250 eV4.005442 × 10⁻¹⁷ J
500 eV8.010883 × 10⁻¹⁷ J
1,000 eV1.602177 × 10⁻¹⁶ J

Questions

How many electronvolts are in one joule?

There are 6.241509 × 10¹⁸ electronvolts in one joule, and 1.602177 × 10⁻¹⁹ joules in one electronvolt.

How do I convert joules to electronvolts?

To convert joules to electronvolts, multiply the number of joules by 6.241509 × 10¹⁸. For example, 5 J = 3.120755 × 10¹⁹ eV.

What can I type in the conversion box?

A number, a unit and the unit you want, like “5 ft 10 in to cm”, “72 °F in C”, “3 cups to ml” or “60 mph to km/h”. It understands symbols, full names, plurals and British spellings, adds mixed units such as feet and inches together, and accepts fractions like 1 1/2 or ½. Leave out the second unit to see the value in every common unit.

Which units does the converter know?

448 units in 36 categories: everyday measures of length, weight, volume, temperature, area, speed and time, technical ones like pressure, energy, torque, viscosity and radiation, and regional units such as the Japanese tsubo, Chinese jin, Indian tola and Russian verst.

How accurate are the conversions?

They use exact definitions wherever one exists (an inch is exactly 2.54 cm, a pound exactly 0.45359237 kg) and show 10 significant figures. A few units have varied over time or by region; those are marked, and the value in common modern use is the one used.

Are US and UK gallons the same?

No. A US gallon is 3.785 litres and a UK (imperial) gallon is 4.546 litres, and pints, quarts and fluid ounces differ in the same way. Both are listed separately, and the plain names mean the US ones.

Is a kilobyte 1000 or 1024 bytes?

A kilobyte (kB) is 1000 bytes, as with every other metric prefix. 1024 bytes is a kibibyte (KiB), and the same goes for MB and MiB, GB and GiB. Disk makers use the first; many operating systems show the second, which is why a 1 TB drive shows up as about 931 GB.

Why can't I convert cups to grams, or kilograms to litres?

Volume and weight measure different things, so the answer depends on what's being measured: a cup of flour weighs far less than a cup of honey. The converter only converts between units of the same kind, and tells you when two units can't be converted.

Part of Unit Converter

Convert over 400 units of length, weight, temperature, volume, speed, pressure, energy and more. Or just type a conversion like “5 ft 10 in to cm”.

About Unit Converter

See all

Markdown Tools

Tool · New

18 free Markdown tools that run in your browser: an editor, slides, a README generator, Markdown to PDF, Word, Slack and Jira, a linter and more.

Label Maker

Tool · New

Print labels from Excel, Google Sheets or a CSV file: pick an Avery-compatible sheet, skip used labels and download a PDF. Addresses, QR codes and barcodes.

14 free printable planners and trackers: weekly and monthly plans, routines, meals, chores, budgets, workouts and more. Edit and print in your browser.

Search by name, description or tag. Press Enter to see every match.