Kcal Vs Cal: 5 Major Differences

There are two distinct measurements—kcal and cal—for calculating the quantity of calories you require. What’s the distinction? There is a measuring discrepancy between Kcal and Cal. Kilocalories (kcal), which equal 1,000 calories, are used to measure one (cal). The other, which can be used to quantify dietary energy that is one-thousandth of a kilocalorie, is measured in calories.

Kcal Vs Cal

What is Cal?

Cal is the abbreviation for calories, the unit of energy. It is the amount of heat or energy required to increase 1 g of water’s temperature by 1 degree Celsius. Calorie units are frequently used to describe the energy present in food. 4.184 Joules are equated to one calorie. Energy density per gram is 4 calories for protein and 9 calories for fat.

What is Kcal?

Kilocalories, or Kcal, is the symbol for the energy unit. The amount of heat or energy required to increase the temperature of 1 kilogram of water by 1 degree Celsius is known as the conversion factor. Kcal is mostly used to measure the amount of energy included in food. 4184 Joules make up 1 kcal.

Key Differences Between a Kcal and a Cal

  • Calories are a smaller unit of energy than kcal, which is a greater unit.
  • Cal is the quantity of energy or heat required to raise the temperature of one gram of water by one degree Celsius, whereas kcal is the quantity of energy or heat required to elevate one kilogram of water by one degree Celsius.
  • In comparison to one kcal, one cal is equivalent to 4.184 Joules.
  • Kilocalories are denoted by the letters kcal instead of calories.
  • While 1 gram of carbs only has 0.004 kilocalories of energy, it still has 4 calories of energy per gram.
  • While 1 gram of fat contains 0.009 kilocalories of energy, it also includes 9 calories.
  • While 4 liters of gasoline only contain 31000 kilocalories, they do contain 31000000 calories.
  • Protein has an energy content of 4 calories per gram as opposed to 0.004 kilocalories per gram.


Is kcal and Cal are same?

The term “calorie” in food actually refers to a kilocalorie. One (1) calorie equals one (1) kilocalorie (uppercase C). One kilogram of water needs one kilocalorie’s worth of heat to increase in temperature by one degree Celsius.

Should I count Cal or kcal?

Kilocalories, abbreviated as kcals, and kilojoules, abbreviated as kJ, are two common units used to express the amount of calories in foods. The term “calorie” is also known as a “kilocalorie,” so 1,000 calories will be represented as 1,000kcals.

Do calories make you fat?

If you consume more calories than you expend or expend less calories than you consume, you will gain weight. Everyone loses weight when they expend more calories than they consume, despite the fact that some people appear to be able to do so more rapidly and readily than others.

How many calories is 1 kg?

1 kilogram of fat has 7,700 kcal (kcal = calories) of energy. Accordingly, you need a 7,700 calorie deficit to burn 1 kg of fat. Given that the daily consumption ranges from 1,800 to 2,400 kcal, burning that much fat takes some time.


In conclusion, the values and applications of kcal and cal differ significantly from one another. Despite the fact that both terms refer to the quantity of energy in food or drink, a kilocalorie has 1000 times the value of a calorie, making it a bigger unit of energy. Furthermore, usage varies across various laws according on the country, while how they might be denoted (capital C for kcal) varies globally by location.