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To convert from Kilocalorie (kcal) to Gigajoule (GJ), use the following formula:
With is the ratio between the base units Joule (J) and calorie (cal).
Let's convert 5 Kilocalorie (kcal) to Gigajoule (GJ).
Using the formula:
Therefore, 5 Kilocalorie (kcal) is equal to Gigajoule (GJ).
Here are some quick reference conversions from Kilocalorie (kcal) to Gigajoule (GJ):
| Kilocalories | Gigajoules |
|---|---|
| 0.000001 kcal | GJ |
| 0.001 kcal | GJ |
| 0.1 kcal | GJ |
| 1 kcal | GJ |
| 2 kcal | GJ |
| 3 kcal | GJ |
| 4 kcal | GJ |
| 5 kcal | GJ |
| 6 kcal | GJ |
| 7 kcal | GJ |
| 8 kcal | GJ |
| 9 kcal | GJ |
| 10 kcal | GJ |
| 20 kcal | GJ |
| 30 kcal | GJ |
| 40 kcal | GJ |
| 50 kcal | GJ |
| 100 kcal | GJ |
| 1000 kcal | GJ |
| 10000 kcal | GJ |
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A kilocalorie (kcal) is a unit used to measure energy.
Just as a kilometer is 1,000 meters, one kilocalorie is equal to 1,000 small calories (cal).
It's the most common unit for discussing the energy content of food.
Have you ever noticed the word "Calories" on a food label? What you're actually seeing is a kilocalorie (kcal).
Here's the simple breakdown:
Essentially, in the world of nutrition, the terms Calorie and kilocalorie are used interchangeably.
The "small calorie" (cal) is a much smaller unit and is primarily used in science labs.
Scientifically, a kilocalorie is the amount of energy needed to heat one kilogram of water by one degree Celsius.
This precise measurement allows scientists to determine how much energy your body can get from the macronutrients in your food, such as:
When a food label says a serving has 100 Calories, it means that's the amount of energy your body can use from it.
The kilocalorie isn't just for food!
As a fundamental unit of energy, it's also used in fields like physics and chemistry to measure energy in chemical reactions and heat transfer.
Ever looked at your energy bill and wondered what a Gigajoule (GJ) is?
It's a standard unit used to measure energy, just like a kilowatt-hour is for electricity or a gallon is for gasoline.
Specifically, a Gigajoule (GJ) is a metric unit of energy in the International System of Units (SI).
One gigajoule is equal to one billion Joules ( J).
A single gigajoule contains a significant amount of energy. To put it into perspective, one GJ is roughly equivalent to:
This makes it an efficient unit for measuring large-scale energy consumption, such as heating your home or powering industrial processes.
You'll most commonly encounter the gigajoule in a few key areas:
Understanding how the gigajoule compares to other units helps compare the costs and efficiencies of different energy sources.
Here are some key gigajoule conversions: