3 ms·Minor note: People need 2000 kcal a day, not 2 kcal. 1 kcal = 1 Calorie = 1000 calories.by BorgHunter 13y agoMinor note: People need 2000 kcal a day, not 2 kcal. 1 kcal = 1 Calorie = 1000 calories.