When doing an exercise to lose weight, you need to know how many calories are needed for your specific activity. Kilojoules are a measurement of the calories you need for an activity. This is a quick and easy guide on the best ways to calculate kilojoules to calories according to your activity. It will help you calculate the number of kilojoules that you need for your body goals. This will help you determine the number of calories needed for weight loss or weight gain.
YOU MIGHT ALSO LIKE
How to do keto to achieve muscle mass
Contents
What Are The Best Ways to Calculate Kilojoules To Calories According To Your Activity

Kilojoules are a measurement of energy. They represent how many calories your body uses while you do an activity, such as running or walking on the treadmill at 3 mph for 30 minutes.
A kilojoule is equivalent to 1000 Calories (or kcal). So if you need 2,000 kcal to lose weight by exercising then it would take 20 km/day worth of exercise and no snacking. The number of kilojoules needed for weight gain will be much greater than the number of calories needed for weight loss.
The Basic Formula In A Nutrient Calculator
The basic formula for calculating how many kilojoules are in a given amount of calories is as follows:
Calories = Kilojoules/4.184
So, if you want to know how many calories you need to gain weight, all you have to do is multiply the number of kilojoules in one serving by 4.184:
Carbs: Calories = Kilojoules/4.184 Serving Size
So, if you wanted to increase your weight by 1kg, all you would need is 3 servings of carbs. If it’s something like protein that you want to increase, then multiplying the number of kilojoules by 4.184 would give us a different number of calories needed for that specific activity.
Determining Your Activity Level
There are four different levels of activity, ranging from sedentary to very active. The level of activity depends on the type of exercise you do. The level of activity depends on the type of exercise you do. If it’s an exercise for sport, then your level is high-intensity and if it’s just a stroll around the block or taking a walk with friends, your levels might be low intensity.
The four levels are:
Very low – less than 2 hours per week
Low – between 2 and 3 hours per week
Moderate – between 3 and 4 hours per week
Active – more than 4 hours per week
Determining the number of calories needed for weight gain or weight loss
The number of calories needed for weight gain or weight loss can be calculated by multiplying the number of kilojoules needed by your daily calorie intake. The number of kilojoules needed is determined by the person’s daily energy expenditure. The number of calories required each day depends on a range of factors including age, gender, weight, and level of physical activity.
If you’re looking to gain weight then your intake should be 2200kJ/calorie or greater; if you are aiming for a low-carb diet with roughly 250g per day for fat loss purposes this would equate to 2000 kJ/day or less in order not have any excess carbs that could cause unwanted side effects such as bloating and excessive hunger pangs. If you are trying to lose weight, then multiply the number of kilojoules needed by your daily calorie intake.
If you are trying to gain weight, then multiply the number of kilojoules needed for exercise by your daily calorie intake. To do this, divide your total caloric needs into two or three main meals per day and estimate how many calories will come from each meal before you eat them. Then calculate what percentage of those estimated calories is made up by various foods (e.g., protein; carbohydrates) that have a specific amount in grams listed on their nutritional labels so that they can be multiplied out together as well.

Conclusion
The kilojoules to calories conversion are helpful for an individual who wants a specific number of daily, weekly, or monthly calorie targets. You can get a conversion calculator to estimate or track the number of calories you need to maintain or lose weight. It can help set up the appropriate macronutrient intake as well and calculate how many carbs are needed to maintain weight loss with an exercise regimen. The formula is easy to calculate and provides helpful information such as the number of kilojoules needed for weight gain or weight loss based on your activity level.
References
- How Many Kilojoules Do You Need Each Day? – HealthierÂ
https://www.healthier.qld.gov.au/resources/kilojoule-calculator/
- Energy In Food (Kilojoules And Calories) – Better Health Channel
https://www.betterhealth.vic.gov.au/health/healthyliving/kilojoules-and-calories
- Convert Calories To Kilojoules | Bupa Health Link
https://www.bupa.com.au/healthlink/health-tools/convert-kilojoules-to-calories
- Kilojoules Burned During Exercise Calculator | Live Better