Nutrition & Food
Intermediate

Weight Change from Energy Balance

Approximate body-fat change (kg) from a cumulative calorie deficit or surplus.

Formula

Δm=Edeficit7700\Delta m = \frac{E_{deficit}}{7700}

Variables

E_{deficit}Net energy deficit (kcal)

Example

7700 kcal deficit ⇒ ≈ 1 kg

Did You Know?

The rule of ~7700 kcal per kilogram (3500 kcal per pound) comes from the energy stored in body-fat tissue.

weight lossdeficitcalories