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What is a Calorie Calculator?
A calorie calculator (also known as a daily calorie calculator or food calorie calculator) estimates the number of calories you need to eat each day to maintain, lose, or gain weight. It works by calculating your TDEE (Total Daily Energy Expenditure), which is the total amount of energy your body burns in a day.
Our free calorie calculator uses the Mifflin-St Jeor equation to find your Basal Metabolic Rate (BMR) and then multiplies it by an activity factor based on your lifestyle. This gives you a personalized daily calorie target.
How to Use This Food Calorie Calculator
Using this food calorie calculator to lose weight is simple:
- Enter your details: Fill in your gender, age, height, and weight.
- Select activity level: Be honest about how much you move. If you have a desk job, choose "Sedentary".
- Choose your goal: Select whether you want to lose, maintain, or gain weight.
- Get your number: The tool will show you exactly how many calories to eat per day.
Understanding Calories and Weight Loss
Weight management comes down to calories in vs. calories out. To lose weight, you need a calorie deficit (eating fewer calories than you burn). To gain weight, you need a calorie surplus.
- 1 lb (0.45 kg) of fat is approximately equal to 3,500 calories.
- To lose 1 lb per week, you need a daily deficit of 500 calories (500 × 7 = 3,500).
- To gain 1 lb per week, you need a daily surplus of 500 calories.
Activity Level Multipliers
The daily calorie calculator uses these multipliers to estimate your burn rate:
- Sedentary (1.2): Little or no exercise, desk job.
- Lightly Active (1.375): Light exercise 1-3 days/week.
- Moderately Active (1.55): Moderate exercise 3-5 days/week.
- Very Active (1.725): Hard exercise 6-7 days/week.
- Extra Active (1.9): Very hard exercise & physical job or 2x training.
Tips for Using a Calorie Calculator App
While this web tool gives you your target, you need to track your food to hit it. If you are looking for a food calorie calculator app to log your meals, we recommend popular trackers like MyFitnessPal or Lose It!. Use our calorie calculator to lose weight to set your daily goal, then use an app to ensure you stay under it.
Frequently Asked Questions (FAQs)
How many calories do I need to lose weight?
Most people need to eat 500 calories less than their maintenance level (TDEE) to lose about 1 lb (0.45 kg) per week. Use this calorie calculator to lose weight to find your maintenance number and subtract 500.
What is a healthy daily calorie intake?
Average recommendations are 2,000 calories for women and 2,500 calories for men to maintain weight. However, this varies greatly by age, height, weight, and activity. Use our daily calorie calculator for your specific number.
Is this a food calorie calculator?
Yes, this is a food calorie calculator for your total daily intake. It tells you how many calories you should eat per day from all food sources. For counting calories in specific foods (like a banana or rice), you would need a food database app.
How accurate is the free calorie calculator?
Our free calorie calculator uses the Mifflin-St Jeor equation, which is considered one of the most accurate formulas available for healthy adults. However, it is an estimate. Your actual burn rate may vary slightly.
What is a calorie deficit calculator?
A calorie deficit calculator helps you determine how many calories you need to cut to reach a weight loss goal. This tool functions as one by showing you the calorie counts for weight loss (-0.5 kg/week, -1 kg/week).