TDEE Calculator for Australia & New Zealand
Calculate your Total Daily Energy Expenditure (TDEE) in kilojoules or calories. This advanced calculator uses three different formulas and displays energy in both kJ and calories to match Australian food labels.
Calculate Your TDEE
Results in both kilojoules and calories
Your Body Stats
Enables the Katch-McArdle formula for more accurate results
Activity Level
Choose Formula
Mifflin-St Jeor
Most accurate for most people
Harris-Benedict
Classic formula, proven reliable
Katch-McArdle
Requires body fat % above
Your Goal
Your Daily Energy Needs
0kJ
0 calories/day
BMR
BMI
Daily Target
Compare All Formulas (kJ/day)
Your Daily Macros
Understanding Australian Food Labels
Australian food labels display energy in kilojoules (kJ). Use these targets when reading nutrition panels at Woolworths, Coles, or any Australian retailer. 1 calorie = 4.184 kJ.
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Understanding TDEE in Kilojoules vs Calories
In Australia and New Zealand, food labels display energy in kilojoules (kJ), while many online resources use calories. Our TDEE calculator shows both so you can easily compare your daily needs with food labels.
- 1 calorie = 4.184 kilojoules
- Average adult daily intake: approximately 8,700 kJ (2,080 calories)
- To lose weight: aim for 6,700-7,700 kJ/day (1,600-1,840 calories)
Australian Dietary Guidelines
According to the Australian Dietary Guidelines, the average energy requirements are:
- Adult women (19-50): 7,400-9,000 kJ/day depending on activity
- Adult men (19-50): 10,000-12,500 kJ/day depending on activity
- Pregnant women: Additional 1,400 kJ/day in 2nd and 3rd trimesters
- Breastfeeding women: Additional 2,000-2,500 kJ/day
Frequently Asked Questions
What is TDEE in kilojoules?
TDEE (Total Daily Energy Expenditure) can be expressed in kilojoules (kJ) or calories. To convert calories to kilojoules, multiply by 4.184. For example, a TDEE of 2,000 calories equals approximately 8,368 kJ. Australian food labels display energy in kJ.
How many kilojoules should I eat per day in Australia?
The average Australian adult requires 8,700 kJ (2,080 calories) per day, but this varies based on age, gender, weight, height, and activity level. Use a TDEE calculator to get your personalised daily energy requirement.
What is a healthy calorie deficit for weight loss in Australia?
Australian health guidelines recommend a moderate calorie deficit of 2,000-2,500 kJ (500-600 calories) per day for sustainable weight loss. This typically results in losing 0.5-1 kg per week. Consult an Accredited Practising Dietitian (APD) for personalised advice.
Which formula should I use?
The Mifflin-St Jeor formula is considered most accurate for the general population. If you know your body fat percentage, the Katch-McArdle formula provides more accurate results, especially for athletes and lean individuals.
Does Foodzilla work with Australian food databases?
Yes, Foodzilla includes Australian and New Zealand food databases alongside USDA data. You'll find local brands, products from Woolworths, Coles, and other Australian retailers, plus traditional foods from the region.
How do I find an Accredited Practising Dietitian in Australia?
Visit the Dietitians Australia website to find APDs in your area. Many dietitians now use meal planning software like Foodzilla to create personalised nutrition plans for their clients.
Related Tools
- TDEE Calculator (Global) - International version with imperial/metric toggle
- Macro Calculator - Calculate your protein, carbs, and fat targets
- Recipe Nutrition Calculator - Analyse the nutrition in your recipes
For Australian & NZ Nutrition Professionals
Are you a dietitian or nutritionist practising in Australia or New Zealand? Foodzilla offers features designed for the local market:
- Australian and New Zealand food databases
- Energy displayed in kilojoules (kJ) as per local standards
- Medicare and NDIS billing integration support
- Recipes using locally available ingredients
- White-label mobile apps for your clients
Disclaimer
This calculator is provided for informational and educational purposes only. The results should not be considered medical advice. Please consult with a qualified healthcare provider, registered dietitian, or physician before making any changes to your diet, exercise routine, or lifestyle. Individual needs may vary based on health conditions, medications, and other factors.
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