Kilojoules and kilocalories are different energy units. Use the same unit on both sides of a comparison, while keeping the food quantity basis unchanged.
What to check
| Check | What to verify |
|---|---|
| Energy | One kilocalorie equals 4.184 kilojoules. |
| Quantity | Retain per kilogram, per can or per serving. |
| Rounding | Round only after the conversion. |
Use this checklist for your own comparison
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One kilocalorie equals 4.184 kilojoules.
Retain per kilogram, per can or per serving.
Round only after the conversion.
A practical example
For an arithmetic example, 100 kcal equals 418.4 kJ. That conversion says nothing about how much your dog should eat.
Before you decide
Do not confuse changing the energy unit with changing the serving size.
For the broader task, see Dog-food label comparison.
Reference and scope
AAFCO: understanding pet-food labels provides background for this topic. Not an evaluation of a specific food or individual dietary suitability. The comparison prompts and examples above are practical planning aids, not reports of product testing.