The calorie and calorie conversions are: 1 kilojoule = 238.9 calories = 0.239 calories; and 1,631 kilojoules = 389,645.9 calories = 389.646 calories.

The calorie is equivalent to the amount of heat required to raise 1,000 grams of water from 14.5 to 15.5 degrees Celsius at 1 atmosphere of pressure, which is equivalent to about 4,186 joules of internal energy. A small calorie, more commonly found in scientific documents, is 1000 small calories = 1 large calorie (1 KiloCalorie).

Vegetables and fruits that contain fewer calories.

1. Vegetables.

Asparagus, broccoli, cabbage, radishes, celery, cucumbers, onions, tomatoes.

2. Fruits.

Apples, grapes, lemons, mango oranges, pineapple strawberries, almonds, bananas, cherries, cranberries, grapefruit, guava, kiwi fruit, lychee, papaya, and so on.