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Nutrition calculator

Weight Loss
Calculator

Project a realistic timeline to reach your target weight. Enter current weight, target weight, and weekly pace to project a realistic timeline.

Start Weight Loss Explore Nutrition
100% privateInstant resultsNo sign-up
1Enter your details

Calculate your result

Use realistic, recent measurements for the most useful estimate.

100% privateInputs stay in this browserInstant resultsCalculated in real timeNo sign-upFree to use
2Your result
Weight LossREADYStart with the form

Your result will appear here

Complete the form and select “Calculate result.” Your measurements never leave this page.

Educational estimate only—not medical advice.
Understand your result

How your Weight Loss estimate is created

A transparent overview of the inputs, method, and appropriate interpretation.

Evidence-informed Browser based
How it works

About this Weight Loss estimate

It divides the difference between current and target weight by the selected weekly rate, then shows an approximate energy adjustment for planning.

Weight-change timeline projection
Current + goal weight→Difference ÷ rate=Estimated Weight Loss
  1. 01Enter details
  2. 02Review inputs
  3. 03Use the estimate
Private by designNo account requiredInputs are not stored
Common questions

Weight Loss Calculator FAQ

Clear answers to help you understand and use your estimate.

01Is the Weight Loss Calculator free and private?

Yes. It is free, runs in your browser, requires no account, and does not store the measurements you enter.

02Can I use this result as medical advice?

No. This result is an educational estimate, not a diagnosis or treatment recommendation. A qualified professional can interpret it within your complete health and training context.

03Why might my Weight Loss result differ from a real-world result?

Water shifts, adherence, metabolic adaptation, activity, training, and non-linear progress mean the real timeline will rarely match a projection exactly.

04How often should I recalculate Weight Loss?

Update the projection when your current weight, goal weight, or planned weekly rate changes. A new projection is not a promise of a completion date.

Read our calculation methodology →Still have questions? Explore the guides ↗