Convert ergs to joules
1 erg = 0.0000001 J — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.000 000 1J
As a fraction: 1/10000000
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1 erg = 0.0000001 J
Show this value in all 39 energy & work units
- Petajoules PJ 1e-22
- Terajoules TJ 1e-19
- Gigajoules GJ 1e-16
- Megajoules MJ 1e-13
- Kilojoules kJ 1e-10
- Joules J 0.000 000 1
- Millijoules mJ 0.0001
- Microjoules µJ 0.1
- Nanojoules nJ 100
- Watt-hours Wh 2.77777777778e-11
- Kilowatt-hours kWh 2.77777777778e-14
- Megawatt-hours MWh 2.77777777778e-17
- Gigawatt-hours GWh 2.77777777778e-20
- Terawatt-hours TWh 2.77777777778e-23
- Calorie (thermochemical)s cal 2.39005736138e-8
- Kilocalories kcal 2.39005736138e-11
- Calorie (IT)s cal (IT) 2.38845896627e-8
- Kilocalorie (IT)s kcal (IT) 2.38845896627e-11
- British thermal units BTU 9.47817120313e-11
- BTU (thermochemical)s BTU (th) 9.48451652677e-11
- Million BTUs MMBTU 9.47817120313e-17
- Therm (US)s thm 9.48043427973e-16
- Therm (EC)s thm (EC) 9.47816987913e-16
- Electronvolts eV 624 150 907 446
- Kiloelectronvolts keV 624 150 907.446
- Megaelectronvolts MeV 624 150.907 446
- Gigaelectronvolts GeV 624.150 907 446
- Teraelectronvolts TeV 0.624 150 907 446
- Ergs erg 1
- Foot-pounds ft·lbf 7.37562149277e-8
- Inch-pounds in·lbf 0.000 000 885 074 579 133
- Foot-poundals ft·pdl 0.000 002 373 036 040 42
- Horsepower-hours hp·h 3.72506135999e-14
- Tonne of TNTs t TNT 2.39005736138e-17
- Kiloton of TNTs kt TNT 2.39005736138e-20
- Megaton of TNTs Mt TNT 2.39005736138e-23
- Hartrees Eₕ 22 937 122 784
- Rydbergs Ry 45 874 245 567.9
- Quads quad 9.47817120313e-26
Every row is Erg converted through the joule, in exact rational arithmetic.
How to convert ergs to joules
Multiply the number of ergs by 0.0000001 to get joules.
The exact factor is 0.0000001 — as a fraction, 1/10000000.
Erg to Joule conversion table
| Ergs (erg) | Joules (J) |
|---|---|
| 1 erg | 0.000 000 1 |
| 2 erg | 0.000 000 2 |
| 3 erg | 0.000 000 3 |
| 5 erg | 0.000 000 5 |
| 10 erg | 0.000 001 |
| 20 erg | 0.000 002 |
| 25 erg | 0.000 002 5 |
| 50 erg | 0.000 005 |
| 100 erg | 0.000 01 |
| 250 erg | 0.000 025 |
| 500 erg | 0.000 05 |
| 1000 erg | 0.0001 |
Joule to Erg conversion table
| Joules (J) | Ergs (erg) |
|---|---|
| 1 J | 10 000 000 |
| 2 J | 20 000 000 |
| 3 J | 30 000 000 |
| 5 J | 50 000 000 |
| 10 J | 100 000 000 |
| 20 J | 200 000 000 |
| 25 J | 250 000 000 |
| 50 J | 500 000 000 |
| 100 J | 1 000 000 000 |
| 250 J | 2 500 000 000 |
| 500 J | 5 000 000 000 |
| 1000 J | 10 000 000 000 |
Frequently asked
How many joules are in a erg?
One erg equals 0.0000001 joules (erg → J). That figure is exact, not rounded.
How do you convert ergs to joules?
Multiply the number of ergs by 0.0000001 to get joules.
What is 1 J in ergs?
One joule is 10000000 ergs.
What is 10 erg in J?
10 erg = 0.000 001 J.