Calorie Deficit Calculator
Result
Calorie Deficit Calculator See how fast you'll lose weight from a calorie deficit. Enter your maintenance calories (TDEE) and how much you plan to eat each day, and this calculator shows your daily deficit plus your projected weekly and monthly weight los — free online calculator.
Formula
- Calorie Deficit Calculator calculates its result from Your TDEE (Maintenance Calories), Target Daily Calories. It uses the formula Deficit = TDEE − Target Calories. Change any input to recalculate the result instantly. This is an informational calculation and is not medical advice.
- The main inputs are Your TDEE (Maintenance Calories), Target Daily Calories. Enter them in the units and format shown in the calculator.
- Use the measurement units shown beside each field. The result is an estimate and should be interpreted in context.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Calorie Deficit
- Your TDEE (Maintenance Calories): 2500
- Target Daily Calories: 2000
Using Your TDEE (Maintenance Calories) = 2500, Target Daily Calories = 2000, the calculated result is 500.
Sample result: Calculating…
Frequently asked questions
What does the Calorie Deficit calculate?
Calorie Deficit Calculator See how fast you'll lose weight from a calorie deficit. Enter your maintenance calories (TDEE) and how much you plan to eat each day, and this calculator shows your daily deficit plus your projected weekly and monthly weight los — free online calculator.
Which values should I enter?
Enter Your TDEE (Maintenance Calories), Target Daily Calories using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: Deficit = TDEE − Target Calories.
Why might my result differ from another source?
Results can differ because measurement methods, rounding and assumptions vary. This calculator is an estimate and is not a medical diagnosis.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.