Joules to Watts Calculator
What is a Joules to Watts Converter?
A Joules to Watts Converter is a useful online tool to help you determine power in watts given some amount of energy in joules over a known time. You can use this approach for just about any application involving physics, as well as engineering and electrical work that utilizes power output. Power-a quantity measured in watts-is the energy (in joules) divided by time (in seconds). The tool allows for simplification of the conversion process; the inputs could be made in varied units of energy, for instance, in joules, kilojoules, or watt-hours, and time such as seconds, minutes, or hours, which result in automatic conversions, producing a precise wattage.
You can convert Joules to watts manually using the following formula.
Joules to Watts Conversion
Formula: Joules to Watts
To calculate power in watts when energy (E) in joules and time (t) in seconds are known:
\[ P = \frac{E}{t} \]
Where:
- \(P\) = Power in watts (W)
- \(E\) = Energy in joules (J)
- \(t\) = Time in seconds (s)
Example Calculation
If the energy is 100 joules and the time is 5 seconds:
\[ P = \frac{100}{5} = 20 \text{ watts} \]
Why Use a Joules to Watts Converter?
Using an online joules-to-watts converter can save time and reduce errors in your calculations. It’s ideal for tasks like:
- Calculating power output in home or industrial projects
- Understanding energy efficiency in appliances
- Academic studies in physics and engineering
How to Use a Joules to Watts Calculator:
- Enter Energy: Type the energy value in joules (J).
- Select Time: Choose the time in seconds, minutes, or hours.
- Click Calculate: Press the “Calculate” button.
- View Result: See the power in watts (W) and the calculation details.
- Change Units: Select different units for energy or time if needed.
FAQs
How to convert joules to watts?
To convert joules to watts, use the formula:
P=E/tWhere:
- Â = Power in watts (W)
- Â = Energy in joules (J)
- Â = Time in seconds (s)
How long does it take to do 500 joules of work with 25 watts of power?
To find the time, divide the energy (500 joules) by the power (25 watts). The result gives you the time in seconds. For this example, the time is 20 seconds.
How much time is needed to produce 720 joules of work if 90 watts of power is used?
To calculate the time, divide the energy (720 joules) by the power (90 watts). For this example, the time is 8 seconds.
900 joules to watts
To convert 900 joules to watts, divide the energy (900 joules) by the time in seconds. For example, if the time is 10 seconds, the power will be 90 watts.
200 joules to watts
To convert 200 joules to watts, divide the energy (200 joules) by the time in seconds. For instance, with a time of 5 seconds, the power will be 40 watts.
1080 joules to watts
To convert 1080 joules to watts, divide the energy (1080 joules) by the time in seconds. For example, with a time of 20 seconds, the power will be 54 watts.
1000 joules to watts
To calculate the power in watts, divide the energy (1000 joules) by the time in seconds. For instance, with a time of 25 seconds, the power will be 40 watts.