What is a Duvet Cover vs Comforter Cover. The origin of the word duvet dates back to the 1750s. Itâs a French word meaning down. According to Dictionary.com, a duvet is usually a down-filled quilt that often has a removable cover.
kJ (kilojoules) is the Australian measure of how much energy people get from consuming a food or drink. Energy in food and drinks is measured by the number of kJ (kilojoules) it provides. kJ are similar to Calories: 1  1 kJ = 0.2 Calories (Cals)  1 Calorie = 4.2 kJs.
The Whopper at 670 kcal (2,803 kJ) per sandwich has more calories than McDonald's Big Mac at 540 kcal (2,259 kJ) per sandwich, but is larger â 290 g (10 oz) vs. 214 g (7.5 oz). Therefore, the Whopper contains fewer calories per gram than the Big Mac. The Whopper contains 231 kcal (967 kJ) per 100 g (3.5 oz) and the Big Mac contains 252 kcal (1,054 kJ) kcal per 100 g (3.5 oz).