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Weight Loss Calculator

Estimate the daily calorie deficit needed to lose a chosen amount of weight over time.

Enter your values and click calculate.
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How to use this weight loss calculator

Enter the values requested in the form above and click the calculate button. The result is shown instantly on this page.

A common estimate is about 7,700 calories per kg or 3,500 calories per pound of body fat. Real weight change can vary because metabolism, water weight, activity, and diet quality matter.

This tool is designed for quick estimates. For financial, medical, tax, legal, or professional decisions, verify important numbers with a qualified professional or official source.

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