Kilojoule to Erg Converter

Energy Converter

27 units available

Decimals:

From

To

10,000,000,000

1 kJ = 10,000,000,000 erg

Formula:

erg = kJ × 1.000000e+10

With your value: 1 kJ = 10,000,000,000 erg

How big is that?

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

Heartbeat (1/1.0e+3 your value)0.00100 kJ

Your value1.00 kJ

AA battery charge (10× your value)10.0 kJ

Slice of bread (2.8e+2× your value)280 kJ

Daily food intake (8.4e+3× your value)8.40e+3 kJ

Litre of petrol (3.4e+4× your value)3.42e+4 kJ

Other Kilojoule to Erg conversions

2 kJ to erg 3 kJ to erg 4 kJ to erg 5 kJ to erg 6 kJ to erg 7 kJ to erg 8 kJ to erg

Kilojoule to Erg Conversion Table

Kilojoule (kJ)	Erg (erg)
0.5	5,000,000,000
1	10,000,000,000
2	20,000,000,000
5	50,000,000,000
10	100,000,000,000
15	150,000,000,000
20	200,000,000,000
25	250,000,000,000
50	500,000,000,000
100	1.000000e+12
250	2.500000e+12
500	5.000000e+12
1000	1.000000e+13

Erg to Kilojoule Conversion Table

Erg (erg)	Kilojoule (kJ)
0.5	5.000000e-11
1	1.000000e-10
2	2.000000e-10
5	5.000000e-10
10	1.000000e-9
15	1.500000e-9
20	2.000000e-9
25	2.500000e-9
50	5.000000e-9
100	1.000000e-8
250	2.500000e-8
500	5.000000e-8
1000	1.000000e-7

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.

Kilojoule (kJ)

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

Erg (erg)

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 Kilojoule to Erg

To convert from Kilojoule (kJ) to Erg (erg), multiply the value by 10,000,000,000.

Formula: erg = kJ × 1.000000e+10

Reverse: kJ = erg × 1.000000e-10

Step-by-Step Example

Start with your value in Kilojoule. For example: 5 kJ
Multiply by the conversion factor: 5 x 10,000,000,000
The result is: 50,000,000,000 erg

About Kilojoule

The kilojoule (kJ) is a unit of energy and work. One kilojoule equals 1000 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 Erg

The erg (erg) is a unit of energy and work. One erg equals 1.000000 × 10^-7 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 Erg are in 1 Kilojoule?

There are exactly 10,000,000,000 Erg in 1 Kilojoule. This means the conversion factor from Kilojoule to Erg is 10,000,000,000.

What is the formula to convert Kilojoule to Erg?

The formula to convert Kilojoule to Erg is: erg = kJ × 1.000000e+10. For example, to convert 10 Kilojoule to Erg, you would multiply 10 by 10,000,000,000.

What is a Kilojoule?