For most tools you need to enter the calories you took. If it is in kilocalories, then you need to convert that into calories (1 kilocalorie = 1000 calories). Also there are online converters available to convert kilojoules to kilocalories, which you can then convert to calories. However, while doing this, remember to see how much calories would be there in the portion size you took from the pack. Hope this helps. Take care!