An erg is a CGS energy unit.
Ergs to Decijoules Converter — erg to dJ
Convert Erg (erg) to Decijoule (dJ) using the exact conversion factor (1 erg = 0.000001 decijoule). See the formula, worked examples, and conversion table.
Ergs to Decijoules converter
Converter
Energy Converter
Convert joules, calories, kilowatt-hours, BTU, electronvolts, therms, and mechanical work units.
Context values
Some unit families need one extra value for a physically accurate result.
Decijoule is 0.1 joule units.
Result = input x 1e-7 / 0.1.
Energy uses the joule as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Ergs to Decijoules
Erg and Decijoule both measure energy, and the conversion is especially useful for comparing nutrition labels (kilocalories) against scientific energy figures (joules). Specifically: An erg is a CGS energy unit, and decijoule is 0.1 joule units.
Formula
decijoules = ergs × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 erg equals 1e-7 base units, and 1 decijoule equals 0.1 base units, so dividing one by the other gives the direct erg-to-decijoule factor of 0.000001.
Simple example
1 erg × 0.000001 = 0.000001 dJ
1 erg = 0.000001 decijoules.
Real-world example
100 erg × 0.000001 = 0.0001 dJ
100 ergs = 0.0001 decijoules.
Conversion table
| Erg (erg) | Decijoule (dJ) |
|---|---|
| 1 erg | 0.000001 dJ |
| 10 erg | 0.00001 dJ |
| 100 erg | 0.0001 dJ |
| 500 erg | 0.0005 dJ |
| 1,000 erg | 0.001 dJ |
| 2,000 erg | 0.002 dJ |
Reverse conversion: Decijoule to Erg
0.000001 dJ × 1000000 = 1 erg
0.000001 decijoules = 1 erg.
ergs = decijoules × 1000000
For a page dedicated to this direction, see Decijoule to Erg.
Understanding the Erg (erg)
An erg is a CGS energy unit.
Understanding the Decijoule (dJ)
Decijoule is 0.1 joule units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decijoules are in 1 erg?
1 erg equals 0.000001 decijoules, using the exact defined conversion factor rather than an estimate.
How do I convert erg to decijoule?
Multiply the erg value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert decijoule back to erg?
Use the reverse factor: 1 decijoule equals 1,000,000 ergs. You can also use the swap control in the converter above to flip the direction instantly.
What is a erg?
Erg (erg) is a unit of energy.
What is a decijoule?
Decijoule (dJ) is a unit of energy.
Is the erg to decijoule conversion exact?
Yes. Both erg and decijoule are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 used above is exact to as many digits as you choose to display.