Kilojoules to Ergs Converter

1 kilojoule (kJ) equals 10,000,000,000 ergs (erg).

Quick answer

  • 1 kilojoule = 10,000,000,000 ergs
  • 1 erg = 1 × 10-10 kilojoules
  • Formula: erg = kJ × 10,000,000,000

1 kilojoule = 10,000,000,000 ergs

How to convert kilojoules to ergs

erg = kJ × 10,000,000,000

To convert kilojoules to ergs, multiply the number of kilojoules by 10,000,000,000.

Example: 10 kJ to erg

  1. Start with the value in kilojoules: 10 kJ.
  2. Multiply by 10,000,000,000: 10 × 10,000,000,000 = 100,000,000,000.
  3. Result: 10 kilojoules = 100,000,000,000 ergs.

Going the other way, 1 erg = 1 × 10-10 kilojoules, so to convert ergs back to kilojoules you divide by the same number. See ergs to kilojoules.

Kilojoules to ergs conversion table

Kilojoules (kJ)Ergs (erg)
0.5 kJ 5,000,000,000 erg
1 kJ 10,000,000,000 erg
2 kJ 20,000,000,000 erg
3 kJ 30,000,000,000 erg
4 kJ 40,000,000,000 erg
5 kJ 50,000,000,000 erg
6 kJ 60,000,000,000 erg
7 kJ 70,000,000,000 erg
8 kJ 80,000,000,000 erg
9 kJ 90,000,000,000 erg
10 kJ 100,000,000,000 erg
11 kJ 110,000,000,000 erg
12 kJ 120,000,000,000 erg
13 kJ 130,000,000,000 erg
14 kJ 140,000,000,000 erg
15 kJ 150,000,000,000 erg
16 kJ 160,000,000,000 erg
17 kJ 170,000,000,000 erg
18 kJ 180,000,000,000 erg
19 kJ 190,000,000,000 erg
20 kJ 200,000,000,000 erg
25 kJ 250,000,000,000 erg
30 kJ 300,000,000,000 erg
40 kJ 400,000,000,000 erg
50 kJ 500,000,000,000 erg
75 kJ 750,000,000,000 erg
100 kJ 1,000,000,000,000 erg
250 kJ 2,500,000,000,000 erg
500 kJ 5,000,000,000,000 erg
1,000 kJ 10,000,000,000,000 erg

What is a kilojoule?

The kilojoule is 1,000 joules. It is the unit of food energy on labels in Australia, New Zealand and the EU (alongside kcal), and a common unit in chemistry.

More about kilojoules →

What is an erg?

The erg is the CGS unit of energy, the work of one dyne over one centimeter, 10⁻⁷ joules.

More about ergs →

Convert kilojoules to other units

Convert other units to ergs

Frequently asked questions

How many ergs are in a kilojoule?

One kilojoule is 10,000,000,000 ergs.

How many kilojoules are in an erg?

One erg is 1e-10 kilojoules.

What is the formula to convert kilojoules to ergs?

erg = kJ × 10,000,000,000.