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Weight Loss Calculator

Calorie deficit needed to hit a goal weight by a target date.

Plan a realistic calorie deficit to reach a goal weight by a target date, given your current weight and daily calorie burn (TDEE).

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

kcal

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

About 7,700 kcal per kilogram (≈ 3,500 kcal per pound) of body fat. Deficit per day = total kcal to lose ÷ days to target.

In depth

Plan a realistic calorie deficit to reach a goal weight by a target date, given your current weight and daily calorie burn (TDEE).