Calculate Your Daily Calorie Needs

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Understanding Your Results

What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic physiological functions like breathing, circulation, and cell production while at complete rest.

Maintenance Calories

This is your Total Daily Energy Expenditure (TDEE) - the total number of calories you burn each day including physical activity. To maintain your current weight, consume this amount.

Weight Loss

To lose weight, consume fewer calories than your maintenance level. A deficit of 500 kcal/day typically leads to about 0.5 kg (1 lb) of weight loss per week.

Weight Gain

To gain weight, consume more calories than your maintenance level. A surplus of 500 kcal/day typically leads to about 0.5 kg (1 lb) of weight gain per week.

About CalorieCalc

Our Mission

At CalorieCalc, we're dedicated to providing accurate, easy-to-use tools that help you understand your body's energy needs. Our BMR and calorie calculator uses scientifically validated formulas to give you personalized results.

How It Works

The calculator uses the Mifflin-St Jeor Equation, which is currently considered the most accurate for estimating BMR in healthy individuals. Your BMR is then multiplied by an activity factor to estimate your total daily energy expenditure.

The Science Behind It

BMR accounts for about 60-75% of your total daily calorie expenditure. The remaining calories are burned through physical activity and digesting food (thermic effect of food). Understanding your BMR is the first step in managing your weight effectively.

Nutrition & Fitness Blog

10 Foods That Boost Your Metabolism

June 15, 2023 • Nutrition

Discover which foods can naturally increase your metabolic rate and help you burn more calories throughout the day.

How Exercise Affects Your Calorie Needs

May 28, 2023 • Fitness

Learn how different types of exercise impact your daily calorie requirements and how to adjust your intake accordingly.

Macronutrients: Finding Your Perfect Balance

April 10, 2023 • Nutrition

Understand the role of proteins, carbs, and fats in your diet and how to balance them for your specific goals.

Frequently Asked Questions

General Questions

How accurate is the calculator?

The calculator provides estimates based on scientifically validated formulas. Individual results may vary based on factors like muscle mass, genetics, and medical conditions.

Why does my BMR change?

Your BMR changes with age, weight fluctuations, muscle mass changes, and other factors. It's good to recalculate every few months or after significant weight changes.

How often should I recalculate?

We recommend recalculating every 2-3 months, or whenever your weight changes by more than 5 kg (10 lbs), or your activity level changes significantly.

Weight Management

Why am I not losing weight at the suggested calorie level?

Several factors could be at play: inaccurate tracking of food intake, metabolic adaptation, water retention, or needing to adjust your activity factor.

Is it safe to eat below my BMR?

Consistently eating below your BMR is not recommended as it may lead to muscle loss, metabolic slowdown, and nutrient deficiencies. Consult a healthcare professional before making drastic changes.

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