Calories to Kilogram Converter (Cal to Kg)

Definition of Calorie and Kilogram

What is the definition of a calorie?

A calorie is defined as the heat or energy needed to raise the temperature of 1 gram of water by 1 degree centigrade at a pressure of 1 atmosphere. It is also referred to as gram calorie (g-cal) or thermo chemical calorie or 'small' calorie. This is equal to 4.1868 joules of energy.

The Food Calorie (Calorie with capital C) or kcal is equal to 1000 calories and is defined as the amount of heat needed to raise the temperature of 1 kilogram of water by 1 degree centigrade. The energy required for this in terms of joules is 4186.8

The Food Calorie is the one mentioned in all edible products and it indicates the amount of energy (in kilo calories) that it contains.

What is the definition of a Kilogram?

A kilogram is the standard SI unit of mass and it is the mass nearly equal to 1000 cubic cm of water and equal to 1000 grams. The latest definition of Kilogram is based on Planck's constant 6.626070150 × 10^-34 kg m²/s. This is derived from the relationships between Energy, Mass and Frequency

There is no direct correlation between Calorie and Kilogram. They are indirectly related through Energy measured in Joules or kg m2/s2

Some Interesting Facts on Calorie to Kg Conversion

• The relationship between Calories and Kilogram is not a direct one and there is no accurate formula or equation for the same. However, it is well established that 1 gram of fat contains 9 calories, a gram of protein and carbohydrate contain 4 calories each. This has been tested under lab conditions. For fat, it is extrapolated to a lower value averaging to 7.716 calories under actual conditions based on absorption and other factors. Therefore, a 1000 grams or 1 kg of fat contains 7716 calories and it is the energy stored as body fat. This is used as the basis for the conversion of calorie to kg.
• The conversion factor of 0.00013 is derived from the above (1/7716 = 0.00013) To convert calorie to kilogram of fat, multiply by this conversion factor
• The Calorie to Kg Equation and Impact on Weight Management: Understanding the relationship between calories and kilograms is important for weight management. One kilogram of body weight is roughly equivalent to 7,716 calories. This means that in order to lose one kilogram, you need to create a calorie deficit of 7,716 calories by diet and exercise . In order to gain 1 kg, you need a calorie surplus diet of roughly 7,700 calories
• Calories to Kilogram and Energy Balance: The concept of calories to kilogram conversion is based on the energy balance equation. This equation states that weight gain occurs when there is an excess of calories consumed compared to calories burned, and weight loss occurs when you burn more calories than what you consume. By understanding this equation, individuals can make informed decisions about their calorie intake and expenditure to achieve their desired weight goals.
• The Cal-kg Equation and Food: It's important to note that different foods have varying calorie to kilogram conversion rates. For example, one kilogram of fat contains approximately 7,000-8,000 calories, while one kilogram of muscle contains around 2,700-3,500 calories. This highlights the importance of maintaining a healthy body composition and focusing on building lean muscle mass.
• Calories, Activity and Weight: When engaging in physical activity, it's helpful to understand the calorie to weight relation for different activities and the metabolical equivalent. For instance, running at a moderate pace burns approximately 100 calories per kilometer, while cycling at a moderate pace burns around 40-50 calories per kilometer and swimming burns 150 calories/hour. This knowledge can assist in setting fitness goals and tracking progress and for effective planning.

The relationship between calories and weight in kgs can be used as reference and as a general guideline. Any weight management should be approached holistically with a proper combination of exercise, diet, sleep, stress management and to be done under proper guidance of health professionals