Enter the energy consumption and power rating into the calculator to determine the time it takes for the energy to be consumed. This calculator can also evaluate any of the variables given the others are known.

Watts To Time Formula

The following formula is used to calculate the time it takes for a certain amount of energy to be consumed.

T = E / P

Variables:

  • T is the time it takes for the energy to be consumed (hours)
  • E is the energy consumption (watt-hours or kilowatt-hours)
  • P is the power rating (watts)

To calculate the time, divide the energy consumption by the power rating. This will give you the duration or time it takes for the energy to be consumed. This can be useful in estimating the operating cost or energy efficiency of an appliance or system.

What is Watts To Time?

Watts to Time is a calculation used to determine the duration or time it takes for a certain amount of energy, measured in watts, to be used or consumed. This is often used in the context of electrical appliances or systems, where the power rating (in watts) and the energy consumption (in watt-hours or kilowatt-hours) are known. The time is then calculated by dividing the energy consumption by the power rating. This can be useful in estimating the operating cost or energy efficiency of an appliance or system.

How to Calculate Watts To Time?

The following steps outline how to calculate the Watts To Time using the formula T = E / P.


  1. First, determine the energy consumption (E) in watt-hours or kilowatt-hours.
  2. Next, determine the power rating (P) in watts.
  3. Next, gather the formula from above = T = E / P.
  4. Finally, calculate the time it takes for the energy to be consumed (T).
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

energy consumption (E) = 500 watt-hours

power rating (P) = 100 watts