What is an exawatt (EW)?

An exawatt is an SI unit of power equal to 10^18 watts, used to describe very large power levels such as those found in planetary or astrophysical contexts.

How does joule per second relate to watts?

One joule per second (J/s) is exactly equal to one watt (W), representing the rate of energy transfer or conversion.

When should I use this conversion from EW to J/s?

Use this conversion when expressing extremely large power levels in a standardized SI unit compatible with electrical, mechanical, and thermodynamic measurements.

How to Convert from Exawatt [EW] to Joule/second [J/s]

Learn how to convert power values from exawatt (EW), a unit for extremely large power levels, to joule per second (J/s), the standard SI unit of power equivalent to watts.

Exawatt [EW]

Joule/second [J/s]

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Exawatt [EW] to Joule/second [J/s] Conversion Table

Exawatt [EW]	Joule/second [J/s]

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Exawatt [EW] to Joule/second [J/s] Conversion Table
Exawatt [EW]	Joule/second [J/s]

Explore More Power Units Converter

What Is This Tool?

This converter allows you to translate power measurements from exawatts (EW), used for very large-scale energy flows, into joule per second (J/s), which is the SI derived unit of power equal to one watt.

How to Use This Tool?

Enter the power value in exawatts (EW) you want to convert
Select exawatt as the input unit and joule per second as the output unit
Initiate the conversion to get the equivalent power in joule per second (J/s)

Key Features

Converts power values from exawatt (EW) to joule per second (J/s)
Handles extremely large power levels typical in astrophysics and planetary science
Based on the exact conversion formula: 1 EW = 10^18 J/s
Useful for applications in global energy, astrophysics, fusion research, and engineering fields

Examples

2 EW converts to 2 × 10^18 J/s or 2000000000000000000 J/s
0.5 EW converts to 0.5 × 10^18 J/s or 500000000000000000 J/s

Common Use Cases

Describing planetary-scale energy flows such as the solar power intercepted by Earth
Comparing luminosities and peak power in astrophysical events like supernovae
Evaluating power scenarios in global energy studies and hypothetical fusion devices
Specifying electrical, mechanical, and thermal power in engineering applications

Tips & Best Practices

Ensure the value entered reflects very large power levels due to the magnitude of exawatt units
Use the converted joule/second value for compatibility with common power measurements in practical applications
Understand that exawatt values are mostly applicable in theoretical, astrophysical, or planetary-scale contexts

Limitations

The exawatt unit represents extremely large power values that may be impractical for everyday measurements
Joule per second (watt) units are generally better suited for manageable power ranges in typical engineering scenarios
This conversion is most relevant for specialized fields rather than routine power calculations

Frequently Asked Questions

What is an exawatt (EW)?: An exawatt is an SI unit of power equal to 10^18 watts, used to describe very large power levels such as those found in planetary or astrophysical contexts.
How does joule per second relate to watts?: One joule per second (J/s) is exactly equal to one watt (W), representing the rate of energy transfer or conversion.
When should I use this conversion from EW to J/s?: Use this conversion when expressing extremely large power levels in a standardized SI unit compatible with electrical, mechanical, and thermodynamic measurements.

Key Terminology

Exawatt (EW): An SI unit of power equal to 10^18 watts, used for describing extremely large power levels, such as in planetary and astrophysical contexts.
Joule per second (J/s): The SI derived unit of power equal to one watt, representing the rate of energy transfer at one joule per second.

Quick Knowledge Check

What does 1 exawatt (EW) equal in joule per second (J/s)?

10^15 J/s

10^18 J/s

10^21 J/s

Which unit is exactly equal to one joule per second?

Exawatt (EW)

Watt (W)

Kilowatt (kW)

For what kind of power levels is the exawatt unit mainly used?

Small electronic devices

Planetary-scale or astrophysical power levels

Everyday household appliances

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