Calcula &Emagrece

Tool

Calorie deficit calculator

Estimate your energy expenditure and explore a calorie target with limits designed for a more sustainable approach.

Calculator

Calorie deficit

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How would you like to plan?

Choose a simulation pace. Moderate is selected by default.

Values are adjusted to the tool's limits. A distant goal does not automatically increase intensity. Estimates do not replace nutritional assessment.

Result

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Enter your details and select “Calculate deficit” to see your result.

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All tools are free. If you would like to support the maintenance and development of the site, you can contribute voluntarily via Pix. No donation is required to use the features.

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Recommended reading

A thoughtful approach to weight loss

Learn how to combine a moderate deficit, food, movement and professional support without turning a calculation into an extreme diet.

CDC · Article

Getting started with weight loss

The CDC explains gradual weight loss strategies and how to improve your chances of keeping weight off.

Read article ↗

NHS · Article

A deficit does not have to be extreme

Learn why sustainable changes and realistic goals matter more than speed.

Read article ↗

WHO · Article

Food and activity work together

The WHO explains obesity, physical activity and the importance of ongoing care.

Read article ↗
Explore meal suggestions

How a calorie deficit works

BMR

Your energy expenditure at rest.

TDEE

Total expenditure, including activity and daily routines.

Safety

Very large deficits can affect energy, performance and recovery.

Understand your tool

How are your calorie needs estimated?

The calculator uses the Mifflin–St Jeor equation and your activity level to estimate daily energy needs. Choose Gentle (10%), Moderate (15%) or Higher (20%), or select “I want to enter my calorie deficit”. Results account for the tool’s limits and show the actual deficit applied. This is an educational simulation, not a prescription.

Here to help

Frequently asked questions

How does BMR differ from daily energy expenditure?

BMR estimates energy use at rest. Daily expenditure adds an approximation of routine activity, so your selected activity level changes the result.

Is the calorie result exact?

No. Equations and activity factors are estimates. Treat the number as a starting point and consider your progress and individual assessment.

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