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Our Free Calorie Deficit Calculator helps estimate how many calories you should eat each day to lose weight based on your personal information and activity level. To get the most accurate result, it’s important to enter your details as honestly and accurately as possible.

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Enter Your Information

Start by entering your age, sex, height, and current weight. These details are used to estimate how many calories your body burns each day at rest and throughout normal daily activities.

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Choose the Right Activity Level

Your activity level has a significant impact on your calorie needs, so avoid selecting a higher option than you actually follow. As a general guide:
  • Sedentary: Little to no exercise and mostly sitting throughout the day.
  • Lightly Active: Light exercise or walking 1 to 3 days per week.
  • Moderately Active: Regular exercise 3 to 5 days per week.
  • Very Active: Intense training or a physically demanding job.
  • Extra Active: Hard physical work combined with frequent exercise.
Being realistic will provide a much more useful calorie target.

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Set Your Goal

Once your maintenance calories have been estimated, the calculator recommends a daily calorie target that creates a sustainable calorie deficit.
Most people achieve the best long-term results with a moderate deficit that promotes steady fat loss while remaining easier to maintain.

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Remember That It’s an Estimate

Every person’s metabolism is slightly different. Your calculated calorie target should be used as a starting point, then adjusted based on your progress over the following weeks. If your weight is not changing as expected, you can gradually increase or decrease your daily calories until you find the intake that works best for you.

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Track Your Progress

A calorie target is only effective if you consistently follow it. Tracking your meals, monitoring your body weight, and staying consistent over time will produce far better results than making frequent large changes to your calories. If you’re looking for an easier way to stay on track, GetFIT App will provide you calorie tracking, recipes, structured meal plans, and workout plans to help you maintain a calorie deficit without giving up the foods you enjoy. But first start with the Calorie Deficit Calculator Here!
The information provided on this website is for general informational purposes only and is not medical or health advice. Calorie calculations are estimates, and you should use the information on this website and its tools at your own discretion and risk. © 2026 Calorie-Deficit.com. All rights reserved. Calorie-Deficit.com is owned and operated by GetFIT App, the online body transformation platform and membership.
Last modified on August 2, 2026