Glossary · Kilojoule

Kilojoule

A kilojoule, kJ, is the metric unit of energy used on food labels in Australia, New Zealand, South Africa and alongside calories in the European Union; one kilocalorie is 4.184 kilojoules. IZeat records in kilocalories; when a customer reads a label in kilojoules, their assistant converts it before recording and the reply says the kcal figure back so the conversion is checked in the same breath.

The conversion is a definition, not an estimate: divide kilojoules by 4.184 to get kilocalories. Labels in the EU print both, so the assistant takes the kcal column; labels in South Africa and Australia often print kJ only, and the assistant converts and says which column it used. The stored source stays label, because the figure was read, not guessed.

Kilojoules are where a label misread costs the most: a 1 000 kJ snack recorded as 1 000 kcal is four times too heavy, and it happens to people and to models. That is one reason every IZeat reply repeats the values back before recording. It is also why the customer's own words are kept next to the converted quantity: if the label said 1 000 kJ, the record keeps that, and the kcal figure next to it.

Put it into practice: Photos.

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