Btu (3.9°C) to Calories (Kilogram,mean)

Btu (3.9°C)

The Btu (3.9°C) is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit at the temperature where water reaches its maximum density which occurs at approximately 3.9°C (39°F).

Calories (Kilogram,mean)

The kilogram calorie sometimes referred to as a "large calorie" or "food calorie" is the energy required to raise the temperature of one kilogram of water by one degree Celsius at one atmosphere of pressure.