Convert 20 Gigajoule to Watt-second (GJ to Watt-second)
Gigajoule (GJ) and Watt-second (Watt-second) are both units of length. With the conversion form below, you can effortlessly and accurately convert gigajoule to watt-second. This free online calculator tool makes it simple and easy to perform the conversion from GJ to Watt-second.

Gigajoule (GJ) and Watt-second (Watt-second) are both units of length. With the conversion form above, you can effortlessly and accurately convert gigajoule to watt-second. This free online calculator tool makes it simple and easy to perform the conversion from GJ to Watt-second.
All Unit Conversions
What is Gigajoule to Watt-second Conversion?
Gigajoule (GJ) and watt-second (Watt-second) are both units used to measure energy, but they serve different purposes depending on the scale of the measurement. If you ever need to convert gigajoule to watt-second, knowing the exact conversion formula is essential.
GJ to watt-second Conversion Formula:
One Gigajoule is equal to 2e+10 Watt-second.
Formula: 1 GJ = 2e+10 Watt-second
By using this conversion factor, you can easily convert any energy from gigajoule to watt-second with precision.
How to Convert GJ to Watt-second?
Converting from GJ to Watt-second is a straightforward process. Follow these steps to ensure accurate conversions from gigajoule to watt-second:
- Select the Gigajoule Value: Start by determining the gigajoule (GJ) value you want to convert into watt-second (Watt-second). This is your starting point.
- Multiply by the Conversion Factor: To convert gigajoule to watt-second, multiply the selected GJ value by 2e+10. This factor is essential for accurately converting from a larger unit (GJ) to a much smaller unit (Watt-second).
- Illustration of Multiplication:
- 1 GJ = 2e+10 Watt-second
- 10 GJ = Watt-second
- 100 GJ = Watt-second
- Find the Conversion Result: The result of this multiplication is your converted value in watt-second unit. This represents the same energy but in a different unit.
- Save Your Watt-second Value: After converting, remember to save the result. This value represents the energy you initially measured, now expressed in watt-seconds.
- Alternative Method – Division: If you prefer not to multiply, you can achieve the same conversion by dividing the gigajoule value by 1e-9. This alternative method also gives you the correct energy in watt-seconds.
- Illustration of Division:
- Watt-second = gj ÷ 1e-9