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    Energy Conversion

    20 Gigajoule to Erg

    Quick answer

    20 Gigajoule (GJ) equals

    2.000000e+17 erg

    To convert 20 Gigajoules to Ergs, multiply by 1.000000e+16. Therefore, 20 Gigajoule (GJ) equals 2.000000e+17 Erg (erg).

    Formula: erg = GJ × 1.000000e+16. Calculation: 20 × 1.000000e+16 = 2.000000e+17 erg.

    Convert Gigajoule (GJ) to Erg (erg) online with our free unit converter. In energy, 1 GJ = 1.000000e+16 erg. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.

    Worked example: converting Gigajoule to Erg

    1. Step 1 — start with the formula. erg = GJ × 1.000000e+16
    2. Step 2 — substitute your figure. 20 GJ × 1.000000e+16
    3. Step 3 — read the result. 20 GJ = 2.000000e+17 erg
    4. Step 4 — check it in reverse. GJ = erg × 1.000000e-16 returns 20 GJ, which matches the figure you started with.

    Energy Converter

    27 units available

    Decimals:
    2.000000e+17

    20 GJ = 2.000000e+17 erg

    Formula:

    erg = GJ × 1.000000e+16

    With your value: 20 GJ = 2.000000e+17 erg

    How big is that?

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

    Heartbeat (1/2.0e+10 your value)1.00e-9 GJ
    AA battery charge (1/2.0e+6 your value)0.0000100 GJ
    Slice of bread (1/7.1e+4 your value)0.000280 GJ
    Daily food intake (1/2.4e+3 your value)0.00840 GJ
    Litre of petrol (1/5.8e+2 your value)0.0342 GJ
    Your value20.0 GJ

    Other Gigajoule to Erg conversions

    14 GJ to erg15 GJ to erg16 GJ to erg18 GJ to erg21 GJ to erg24 GJ to erg25 GJ to ergFull Gigajoule to Erg converter

    Gigajoule to Erg Conversion Table

    Gigajoule (GJ)Erg (erg)
    0.55.000000e+15
    11.000000e+16
    22.000000e+16
    55.000000e+16
    101.000000e+17
    151.500000e+17
    202.000000e+17
    252.500000e+17
    505.000000e+17
    1001.000000e+18
    2502.500000e+18
    5005.000000e+18
    10001.000000e+19

    Erg to Gigajoule Conversion Table

    Erg (erg)Gigajoule (GJ)
    0.55.000000e-17
    11.000000e-16
    22.000000e-16
    55.000000e-16
    101.000000e-15
    151.500000e-15
    202.000000e-15
    252.500000e-15
    505.000000e-15
    1001.000000e-14
    2502.500000e-14
    5005.000000e-14
    10001.000000e-13

    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.

    Gigajoule (GJ)

    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 Gigajoule to Erg

    To convert from Gigajoule (GJ) to Erg (erg), multiply the value by 1.000000e+16.

    Formula: erg = GJ × 1.000000e+16

    Reverse: GJ = erg × 1.000000e-16

    Step-by-Step Example

    1. Start with your value in Gigajoule. For example: 5 GJ
    2. Multiply by the conversion factor: 5 x 1.000000e+16
    3. The result is: 5.000000e+16 erg

    Gigajoule and Erg Relationship

    This calculation facilitates standardized conversion between recognized units of energy. Since 1 Gigajoule equals approximately 1.000e+16 Ergs, the Gigajoule represents a larger unit interval than the Erg. Understanding the relationship between Gigajoule and Erg is essential for accurate calculations in physics, engineering, commerce, and daily applications.

    About Gigajoule

    The Gigajoule (symbol: GJ) is a recognized unit in the Metric (SI) measurement framework, utilized within energy applications for precision and standardized data representation.

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

    About Erg

    The Erg (symbol: erg) is a recognized unit in the Standard measurement framework, utilized within energy applications for precision and standardized data representation.

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

    Frequently Asked Questions

    What is 20 Gigajoule in Erg?
    20 Gigajoule equals 2.000000e+17 Erg.
    How many Ergs are in 1 Gigajoule?
    There are exactly 1.000000e+16 Ergs in 1 Gigajoule. This means the conversion factor from Gigajoule to Erg is 1.000000e+16.
    What is the formula to convert Gigajoule to Erg?
    The formula to convert Gigajoule to Erg is: erg = GJ × 1.000000e+16. For example, to convert 10 Gigajoules to Ergs, you would multiply 10 by 1.000000e+16.
    What is a Gigajoule?
    The Gigajoule (symbol: GJ) is a recognized unit in the Metric (SI) measurement framework, utilized within energy applications for precision and standardized data representation.
    What is a Erg?
    The Erg (symbol: erg) is a recognized unit in the Standard measurement framework, utilized within energy applications for precision and standardized data representation.
    What are the common uses of Gigajoule?
    The Gigajoule is commonly used in energy calculations, engineering and science, education.

    Related Energy Conversions

    Joule → ErgKilojoule → ErgMegajoule → ErgGigajoule → JouleGigajoule → KilojouleGigajoule → MegajouleGigajoule → MillijouleGigajoule → Calorie (th)Gigajoule → Calorie (IT)

    Cite this page

    UnitConvertLab. (2026). 20 Gigajoule to Erg. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/20-gigajoule-to-erg