Joules to Watts Calculator

How to Calculate Watts from Joules

Converting joules to watts is a fundamental calculation in physics and engineering. It involves understanding the relationship between energy, power, and time. Our calculator simplifies this process, but it's important to understand the underlying principles.

Calculation Formula

The formula to calculate watts from joules is:

\[P = \frac{E}{t}\]

Where:

• P is the power in watts (W)
• E is the energy in joules (J)
• t is the time in seconds (s)

Calculation Steps

1. Identify the energy in joules (E)
2. Identify the time in seconds (t)
3. Divide the energy by the time
4. The result is the power in watts

Example Calculation

Let's calculate the power for 1000 joules of energy expended over 5 seconds:

1. Identify the given values: \[E = 1000 \text{ joules}\] \[t = 5 \text{ seconds}\]
2. Apply the formula: \[P = \frac{E}{t} = \frac{1000}{5} = 200 \text{ watts}\]

Therefore, 1000 joules of energy expended over 5 seconds results in a power of 200 watts.

Calculation Visualization

This bar chart visually compares the input energy (1000 joules), the resulting power (200 watts), and the time (5 seconds) from our example calculation. The height of each bar is proportional to its value, illustrating the relationship between energy, power, and time in physical systems.