Keto Macro Calculator

Calculate your daily macronutrient targets for a ketogenic diet based on your personal details and goals.

isCalculator Editorial Team Published by:
Reviewed by: Review Board
Last Updated:

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How to use this tool?

Follow these simple steps to calculate your keto macros:

  1. Enter your age in years (10–120).
  2. Select your gender (Male or Female).
  3. Enter your weight in kilograms (kg) — the calculator uses metric units only.
  4. Enter your height in centimeters (cm).
  5. Choose your activity level from the dropdown (sedentary to extra active).
  6. Select your goal: Lose Weight, Maintain Weight, or Gain Weight.
  7. Click "Calculate Macros" to see your daily results.

What you get: Your daily Calories, Protein (g), Fat (g), and Carbs (g). The calculator uses the Mifflin-St Jeor equation for BMR, adjusts for activity and goal, then sets protein at 1.8g per kg of body weight, carbs fixed at 25g, and the rest from fat.

Tip: All inputs are required and validated. If you see an error, double-check your entries.

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Frequently Asked Questions

It calculates your daily macronutrient needs for a ketogenic diet based on your personal data and goals.

It uses the Mifflin-St Jeor equation for BMR, which is one of the most accurate formulas. Results are estimates and may vary.

Standard keto recommends 20-50g net carbs daily. We use 25g as a moderate target for most users.

Reviewed by Experts

Anita Leonor F. Jaime

Anita Leonor F. Jaime

Physician

Dedicated Occupational Physician with experience in Occupational Medicine and emergency care. Proficient in health assessments, hygiene management, and compliance with safety standards. Committed to promoting occupational health and improving workplace quality of life.

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Dr. Leonilde Melgaço

Dr. Leonilde Melgaço

Medical Doctor

Primary health care and Assistant Physician in Occupational Medicine

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Dr. Zouheir Ballouk

Dr. Zouheir Ballouk

Doctor

Medical Doctor Phd

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Layla Nesr

Layla Nesr

Nutritionist

Bachelor’s Degree, BS in Nutrition and Dietetics

LinkedIn
Neil Chaves

Neil Chaves

Doctor

Dentist

LinkedIn
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