Meal Energy Calculator
Add multiple food items to estimate total meal energy. Enter kJ values from packaging, then see the total and kcal equivalent.
Multi-Item Energy Calculator
Enter the kJ from each item and see the total instantly.
Quick examples:
Results will appear here
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General information only — not medical advice.
Usage & Reference
- Adding multiple items (main + sides + snacks) to get a single total
- Comparing two meal options by total kJ and kcal
- Estimating how a meal fits into the daily reference value
This tool sums the kilojoules (kJ) from each item to estimate total meal energy. The daily reference comparison uses 8,700 kJ as a general label reference (not a personalised target).
Want to check a single item against the reference? See Daily KJ Intake. Need per-serve conversions? Try Energy per Serving.
Questions about adding multiple items
How do I calculate total meal energy in kJ?
Add the kJ values from each item (main, sides, snacks, drinks). This tool sums them automatically.
Can I compare the total to the 8,700 kJ daily reference?
Yes. The result includes the percentage of 8,700 kJ, which is a common label reference value.
Does this also show calories (kcal)?
Yes. Along with total kJ, you’ll see the kcal equivalent for quick comparison.
Is this medical or dietary advice?
No. This calculator is general information only and isn’t personalised health advice.
Learn & Explore
Tip: Use the Toolkit to pick the right calculator for labels (per 100g vs per serve), meal totals, and daily reference values.