Enter the mass of water, specific heat capacity, and the desired temperature change into the calculator to determine the energy required to achieve the temperature change.

Water Temperature Change Formula

The following formula is used to calculate the energy required to change the temperature of water.

E = m * c * ΔT

Variables:

  • E is the energy required (Joules)
  • m is the mass of water (kilograms)
  • c is the specific heat capacity (J/kg°C)
  • ΔT is the temperature change (°C)

To calculate the energy required to change the temperature of water, multiply the mass of water by the specific heat capacity and the temperature change.

What is Specific Heat Capacity?

Specific heat capacity is the amount of energy required to raise the temperature of one kilogram of a substance by one degree Celsius. For water, the specific heat capacity is typically around 4,186 Joules per kilogram per degree Celsius (J/kg°C).

How to Calculate Energy Required for Water Temperature Change?

The following steps outline how to calculate the energy required to change the temperature of water.


  1. First, determine the mass of water (m) in kilograms.
  2. Next, determine the specific heat capacity (c) in J/kg°C. For water, this is typically 4,186 J/kg°C.
  3. Next, determine the desired temperature change (ΔT) in degrees Celsius.
  4. Next, gather the formula from above = E = m * c * ΔT.
  5. Finally, calculate the energy required (E) in Joules.
  6. 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.

mass of water (m) = 2 kilograms

specific heat capacity (c) = 4,186 J/kg°C

temperature change (ΔT) = 5 °C