Electron Volt to Rydberg Converter

Energy Converter

27 units available

Decimals:

From

To

0.073499

1 eV = 0.073499 Ry

Formula:

Ry = eV × 0.0734986565

With your value: 1 eV = 0.07349866 Ry

How big is that?

Everyday references on a logarithmic scale, all expressed in electron volt so you can sanity-check the result.

Your value1.00 eV

Heartbeat (6.2e+18× your value)6.24e+18 eV

AA battery charge (6.2e+22× your value)6.24e+22 eV

Slice of bread (1.7e+24× your value)1.75e+24 eV

Daily food intake (5.2e+25× your value)5.24e+25 eV

Litre of petrol (2.1e+26× your value)2.13e+26 eV

Other Electron Volt to Rydberg conversions

2 eV to Ry 3 eV to Ry 4 eV to Ry 5 eV to Ry 6 eV to Ry 7 eV to Ry 8 eV to Ry

Electron Volt to Rydberg Conversion Table

Electron Volt (eV)	Rydberg (Ry)
0.5	0.036749
1	0.073499
2	0.146997
5	0.367493
10	0.734987
15	1.10248
20	1.469973
25	1.837466
50	3.674933
100	7.349866
250	18.374664
500	36.749328
1000	73.498657

Rydberg to Electron Volt Conversion Table

Rydberg (Ry)	Electron Volt (eV)
0.5	6.802845
1	13.605691
2	27.211382
5	68.028454
10	136.056909
15	204.085363
20	272.113817
25	340.142272
50	680.284543
100	1,360.569087
250	3,401.422717
500	6,802.845435
1000	13,605.690869

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Electron Volt (eV)

Energy

Exact conversion

1 eV = 1.602 176 634 × 10⁻¹⁹ J exactly, since the elementary charge is now fixed.

Source: CODATA Internationally Recommended Values of the Fundamental Physical Constants (2022 adjustment)

CODATA / NIST · Reviewed 2026-07-01

Rydberg (Ry)

Energy

Exact conversion

Derived from the joule (1 J = 1 kg·m²/s²). Thermochemical and IT calories, BTU and kWh are exact defined multiples.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Electron Volt to Rydberg

To convert from Electron Volt (eV) to Rydberg (Ry), multiply the value by 0.0734986565.

Formula: Ry = eV × 0.0734986565

Reverse: eV = Ry × 13.6056908692

Step-by-Step Example

Start with your value in Electron Volt. For example: 5 eV
Multiply by the conversion factor: 5 x 0.0734986565
The result is: 0.367493 Ry

About Electron Volt

The electron volt (eV) is a unit of energy and work. One electron volt equals 1.602177 × 10^-19 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

About Rydberg

The rydberg (Ry) is a unit of energy and work. One rydberg equals 2.179872 × 10^-18 joules. UnitConvertLab converts it against every other energy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: energy calculations, engineering and science, education.

Frequently Asked Questions

How many Rydberg are in 1 Electron Volt?

There are exactly 0.0734986565 Rydberg in 1 Electron Volt. This means the conversion factor from Electron Volt to Rydberg is 0.0734986565.

What is the formula to convert Electron Volt to Rydberg?

The formula to convert Electron Volt to Rydberg is: Ry = eV × 0.0734986565. For example, to convert 10 Electron Volt to Rydberg, you would multiply 10 by 0.0734986565.

What is a Electron Volt?