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Facts, icons and captures for Pocket Cal/kJ.
Fact sheet
- What it is
- An app that converts between Calories and kilojoules and puts the number in context.
- Conversion
- 1 Calorie (kcal) = 4.184 kJ
- Platforms
- iOS and Android
- Price
- Free with ads. Pro is a one-off purchase, not a subscription.
- First released
- 2011
- Rating
- 4.6 from 668 ratings on the Australian App Store, as at November 2026
- Foods
- 153 everyday foods in the comparison set (version 4.0.1 source)
- Pro exercises
- 29 more exercises than the free set
- Languages
- 12
- Themes
- Ocean Baths, Pink Salt, Last Light, Fern Gully, Apricot Hour
- Main markets
- Australia, New Zealand, the UK and the EU, where food labels use kilojoules
- In development
- A nutrition label scanner (Label Lens) and a watch app. Neither is available yet.
- Store pages
- App Store, Google Play
App icons
One icon for each theme. Square PNG, 1024 px.
Captures
Captured from version 4.0 builds on iOS, November 2026.






