Enter the power in watts and the time in seconds into the calculator to convert the energy to calories.

Watts to Calories Formula

The following formula is used to convert watts to calories:

C = P * t * 0.239005736

Variables:

  • C is the energy in calories
  • P is the power in watts
  • t is the time in seconds

To convert watts to calories, multiply the power in watts by the time in seconds and then by the conversion factor of 0.239005736.

What is the Conversion from Watts to Calories?

The conversion from watts to calories is based on the relationship between the watt, which is a unit of power, and the calorie, which is a unit of energy. Since power is the rate at which energy is used or produced, to find the energy in calories, you need to multiply the power in watts by the time in seconds during which the power is exerted, and then convert the result to calories using the conversion factor.

How to Calculate Calories from Watts?

The following steps outline how to calculate the energy in calories from power in watts:


  1. First, determine the power in watts (P).
  2. Next, determine the time in seconds (t).
  3. Use the formula C = P * t * 0.239005736 to calculate the energy in calories (C).
  4. Finally, enter the values of P and t into the calculator above to find the energy in calories.

Example Problem:

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

Power in watts (P) = 100 watts

Time in seconds (t) = 60 seconds