Calorie deficit
calculator

This calculator helps you estimate how many calories you should be consuming to reach your target weight. Get recommendations based on your results, including whether a REA protocol is right for you.

To maintain
current weightkcal/day
To lose 0.5 kg/wkkcal/day
To lose 1 kg/wkkcal/day
Your timeline
To hit your target goal
of __ kgweeks

The calorie deficit calculator is only an estimate of the calorie reduction required to lose weight, based on factors such as age, weight, height, activity level and goal. It may not accurately reflect the health of people with high muscle mass, pregnant women, minors, older adults or people with specific medical conditions. It should not be used as a substitute for a professional evaluation.

This calculator does not determine eligibility for any treatment on the REA platform. An evaluation with your advisor is always required to assess the right option based on your health history.

Struggling to stay in a deficit?

Our protocols help control appetite so the deficit feels natural, with support at every step.