With this online calculator you can convert Gcal to tons (gigacalories to metric tons) of heated water.
Formula:
M = 1000 * Q / (T2 - T1)
Q - thermal energy, Gcal
M - mass of heated water, tons
T1 - initial temperature, °С
T2 - final temperature, °С
Note: 1 gigacalorie corresponds to the heating of 1000 tons of water per 1 degree Celsius.
Heat is a form of energy that can be transferred from one object to another or even created at the expense of the loss of other forms of energy.