Fiber: Calorie Calculator

Calculate your calories and macros easily and simply for free. Eat what you want! Always respecting your carbohydrate, protein and fat targets.

• Calculate your caloric needs.

• Calculate all your macronutrients.

• No subscriptions.

• No adds.

• No sign-ups.

• All information is confidential

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• Accurately calculate the macros your body needs to reach your fat loss, muscle gain, or maintenance goals.

• The Fiber App was designed for those in search of the most precise macronutrient calculations to achieve fat loss, muscle gain, or body weight maintenance.

• A macro calculator is only valuable if it provides accurate macros. The Fiber App's body fat-based macro calculator accomplishes just that.

• Macro Calculators and macro trackers outperform the results of calorie counters. Whether your goal is weight loss or muscle building, a macro calculator is your optimal choice. Even if you aim to maintain your weight and enhance overall health, Fiber app will assist you.

• Fiber offers the world's most sophisticated and user-friendly macro tracker available in the app store. It caters to the needs of novices and seasoned nutritionists and physiologists alike. Fiber provides the ultimate nutrition experience for tracking macros—simple, fast, and powerful. Calculating macros and monitoring macro intake works for losing body fat, bodybuilders, athletes, and everyone in between.

• Hundreds of millions track their food using mobile apps that rely on macro calculators based on a flawed BMI formula developed in the 17th century for adult males in an English village. Fiber is a next-generation macro tracker based on body fat, making it the most precise macro calculator for nutrition-based fat loss, muscle building, and optimal health.

• The Fiber App provides a reliable estimate of one's macronutrient needs based on goals and current body composition. For more precise macro calculations


• The Fiber App takes into consideration each user's activity level, whether it's exercise, household chores, or manual labor, to calculate the most accurate daily macro targets. Changes in body composition are reflected in real-time macro calculations.

• The Fiber App's calorie dial enables precise adjustment of macro calculations according to an individual's body and goals. You can dial down to reduce energy intake for increased fat loss or dial-up to boost energy intake for muscle growth.