Enter a value in either box above and we'll convert it.
Formula: 1 Cal = 4.184 kJ, rounded to the nearest whole number.
The food and drinks we consume provide energy, measured in calories or kilojoules. While they measure the same thing, not all nutritional food labels will show both. So, if you prefer one over the other, this handy tool can help translate calories into kilojoules, or vice versa.
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Using this tool
One Calorie (with an uppercase C) is also known as a ‘kilocalorie’ (1000 calories with a lower case c). This calculator converts between Calories and kilojoules, where 1 Calorie equals 4.184 kilojoules, rounded to the nearest whole number.
This calculator has been reviewed by Bupa health professionals and is based on reputable sources of medical research. It is not a diagnostic tool and should not be relied on as a substitute for professional medical or other professional health advice.
You should know
Food provides the nutrients and energy our bodies need to function, both physically and mentally, and be happier, healthier people. Knowing the energy value of foods can give you a better understanding of how much you're taking in to make sure you don't consume more energy than you generally use or help to compare one product with another.
Keeping track of your calories is one way to keep your weight within a healthy range, but the best approach is to ensure you're having a healthy, well-balanced diet; one that includes the right amount of energy for you, with plenty of vegetables, along with fruit, lean proteins, grains and dairy (or alternatives), and limited amounts of salt, added sugar, saturated fats and alcohol.
Where to get help
- Visit Better Health Channel to learn more about kilojoules and calories.
- Visit Eat for Health to learn more about the Australian dietary guidelines.
- Visit Healthdirect to find out more about what kilojoules are and how your body uses them.
Use our health tools
Further reading
50 healthy food swaps
Small changes to your diet can have a big impact on your health. To make it easy, we’ve put together 50 healthier food swaps you can make for the whole family.
How to keep a food diary
If you’re trying to manage your weight or eating habits, keeping a food diary could help you become more aware of what and when you’re eating.
Portion control: Does size really matter?
Trying to get to or maintain a healthy weight? It’s important to make sure you’re eating well-balanced meals and eating enough. Let’s talk portion control.
8 simple ways to stop sugar cravings
Are you prone to sugar cravings? Learn how to recognise a sugar craving and what to do when it strikes.