How do you calculate joules from calories?
Table of Contents
How do you calculate joules from calories?
To convert a calorie measurement to a joule measurement, multiply the energy by the conversion ratio. The energy in joules is equal to the calories multiplied by 4.184.
How do you convert calories to grams to joules?
1 gram calorie is equal to 4.1858 joule.
What is 1 calorie equal to in joules?
approximately 4.2 joules
The calorie was originally defined as the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of water 1° Celsius. Since 1925 this calorie has been defined in terms of the joule, the definition since 1948 being that one calorie is equal to approximately 4.2 joules.
How do you convert calories into energy?
One calorie (kcal) equals 4.18 kJ or 4,184 joules (J) ( 1 ). To convert from calories to kJ, multiple calories by 4.18. Conversely, to convert from kJ to calories, divide kJ by 4.18. For example, a medium-sized banana (118 grams) provides 105 calories (kcal) or 439 kJ ( 2 ).
How do you convert kilojoules to calories?
The formula to change kilojoules to calories is quite simple. Since one Cal is equal to 4.184 kJ, you just need to divide the kilojoule value by 4.184 to get the Cals equivalent. Dividing by 4.184 is the same as multiplying by 0.239.
How do you convert kilo calories to joules?
To convert a kilocalorie measurement to a joule measurement, multiply the energy by the conversion ratio. The energy in joules is equal to the kilocalories multiplied by 4,184.
How do you convert kcal/kg to J kg K?
By using our Kilocalorie/Kilogram/Celsius to Joule/Kilogram/Kelvin conversion tool, you know that one Kilocalorie/Kilogram/Celsius is equivalent to 4186.8 Joule/Kilogram/Kelvin. Hence, to convert Kilocalorie/Kilogram/Celsius to Joule/Kilogram/Kelvin, we just need to multiply the number by 4186.8.
How many kilocalories is a calorie?
The “calorie” we refer to in food is actually kilocalorie. One (1) kilocalorie is the same as one (1) Calorie (uppercase C). A kilocalorie is the amount of heat required to raise the temperature of one kilogram of water one degree Celsius.
How do you convert kJ to calories in chemistry?
Multiply the number of joules (J) by 0.239 to get the number of calories (cal). Note that 1 kJ = 0.239 calories. So, to convert from joules to calories, all you have to do is multiply by 0.239. For example, multiply 5,000 J by 0.239 to get 1,195 cal.
How do you calculate calories manually?
Calculating Your Daily Calories
- For women, BMR = 655.1 + (9.563 x weight in kg) + (1.850 x height in cm) – (4.676 x age in years)
- For men, BMR = 66.47 + (13.75 x weight in kg) + (5.003 x height in cm) – (6.755 x age in years)
How do you calculate calories from weight?
How to calculate your daily calorie needs
- Step 1: Find your body weight in kilograms (if you live in the US, just divide your weight in pounds by 2.2 to get your weight in kilograms).
- Step 2: Multiply your weight in kilograms by 0.9 if you are a woman or 1.0 if you are a man.
- Step 3: Multiply by 24.
