Calorie Deficit Calculator

Estimate daily calorie deficit and an approximate weekly weight-change equivalent.

Enter your numbers

Daily calorie deficit500 kcal
Weekly calorie deficit3,500 kcal
Weekly weight-change estimate0.45 kg

General educational estimate only; it is not medical advice.

Practical guide

Calorie Deficit Calculator

Worked example

Here is a simple Calorie Deficit example:

2,400 maintenance − 1,900 intake → 500 kcal daily deficit.

Common mistakes to avoid

  • Avoid extreme calorie restriction.
  • Real weight change is not perfectly linear.
  • Discuss health goals with a qualified professional.

Frequently asked questions

What does the Calorie Deficit calculate?

Estimate daily calorie deficit and an approximate weekly weight-change equivalent.

Which formula is used?

Daily deficit = maintenance calories − daily intake

Can I rely on this result?

Use the result as a planning estimate. Check important financial, tax, legal, investment, or health decisions with a qualified professional.