Macro Calculator
Macro Calculator
How it works: This calculator divides your daily calories into macronutrients (protein, carbohydrates, and fat) based on your selected distribution. Protein and carbs provide 4 calories per gram, while fat provides 9 calories per gram. Different distributions support different goals - balanced for general health, low carb for weight loss, high protein for muscle building, and keto for very low carb diets.
Overview
Calculate optimal macronutrient distribution based on your daily calories and nutritional goals. This calculator offers multiple diet templates including balanced (40/30/30), low carb (50/20/30), high protein (40/20/40), keto (25/5/70), and endurance (15/65/20) distributions. Enter your daily calories and select your preferred macro split to get instant results showing grams and calories for protein, carbohydrates, and fat. Perfect for meal planning, diet tracking, fitness nutrition, or achieving specific body composition goals. The calculator provides visual pie charts and helps you understand the caloric distribution of each macronutrient. All calculations happen instantly in your browser with complete privacy—no data is stored or transmitted.
About
About Macro Calculator
Calculate optimal macronutrient distribution based on your daily calories and nutritional goals.
Features:
- 5 different macro distribution templates
- Balanced, low carb, high protein, keto, endurance options
- Shows grams and calories for each macro
- Visual pie chart breakdown
- Based on 4-4-9 calorie rule (protein-carbs-fat)
- 100% client-side - your data stays private
FAQ
What are macronutrients?
Macronutrients are nutrients needed in large amounts: protein (4 cal/g), carbohydrates (4 cal/g), and fat (9 cal/g). They provide energy and support bodily functions.
Which macro distribution is best?
It depends on your goals: Balanced for general health, low carb for weight loss, high protein for muscle building, keto for very low carb diets, endurance for athletes.
How much protein do I need?
General guidelines: 0.8g per kg for sedentary, 1.2-1.6g per kg for active people, 1.6-2.2g per kg for strength training or muscle building.
Can I customize macro percentages?
This calculator provides preset distributions. For custom percentages, you'd need to calculate manually using the 4-4-9 calorie rule for protein-carbs-fat.
Should I track macros or just calories?
Calories determine weight change, but macros affect body composition, energy levels, and satiety. Tracking both is optimal for most fitness goals.