Calorie & Macros Calculator (TDEE)
Calculate your Total Daily Energy Expenditure (TDEE), ideal calorie intake, and macronutrient targets for your goal.
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How to Use This Calorie & Macros Calculator
This calculator uses the Mifflin-St Jeor equation — the most accurate BMR formula for general populations — to estimate your daily calorie needs and macronutrient targets.
Understanding Your Results
Activity Level Guide
How Fast Should You Lose Weight?
A 500 calorie daily deficit creates roughly a 0.5kg loss per week. This pace is sustainable and preserves muscle mass. Cutting more than 750–1,000 calories risks muscle loss, fatigue, and rebound eating.
Formula
BMR (Mifflin-St Jeor): Male = 10W + 6.25H − 5A + 5 | Female = 10W + 6.25H − 5A − 161 | TDEE = BMR × Activity MultiplierFrequently Asked Questions
What is TDEE?
Total Daily Energy Expenditure is the total calories your body burns in a day, including your basal metabolic rate and all physical activity. Eating below your TDEE creates a deficit for fat loss; above it creates a surplus for muscle gain.
How accurate is this calculator?
The Mifflin-St Jeor formula is within ±10% for most people. Use the result as a starting point, then adjust based on 2–3 weeks of real-world data. If you’re not losing weight at the calculated deficit, reduce calories by 100–200.
How much protein do I actually need?
For body composition goals, 1.6–2.2g per kg of bodyweight is the evidence-based range. This calculator uses 2g/kg, which is sufficient whether you’re cutting or bulking and helps preserve lean muscle during a calorie deficit.
Do I need to hit my macros exactly every day?
No — consistency over a week matters more than perfection on any single day. Aim to hit your protein target daily (most impactful), and let carbs and fat flex based on your food choices.
Should I eat back exercise calories?
If you selected an accurate activity level, your exercise is already factored into your TDEE. Only eat back calories if you did significantly more exercise than your activity level assumes — and even then, only partially, as calorie burn estimates are often inflated.
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