Calories to Fat Calculator

Fat lost

2kg

4.4 lb by the 3,500 kcal rule

In grams

2,000g

Average a day

550kcal

0.5 kg a week

15,400 kcal ÷ 7,700 kcal per kg = 2 kg (4.41 lb), or ÷ 3,500 kcal per lb = 4.4 lb.

Over weeks and months this rule overstates the change, because a lighter body burns less and not all of the weight is fat. Read the result as an early, upper estimate (see the limits below).