Daily Calorie Intake Calculator
This calculator provides estimates for educational purposes only and is not medical advice. Results may vary based on individual factors. Consult a healthcare provider before making changes to your diet or exercise routine.
What is Daily Calorie Intake?
Daily Calorie Intake (DCI) is the number of calories your body needs each day to maintain your current weight. It is calculated from two components: your Basal Metabolic Rate (BMR) — the calories your body burns at rest just to keep organs functioning — and your activity level, which accounts for movement and exercise throughout the day.
Our calculator uses the Harris-Benedict equation to estimate your BMR, then multiplies it by an activity factor to give you your Total Daily Energy Expenditure (TDEE). This is the number you need to eat at to maintain weight, eat below to lose, or eat above to gain.
BMR vs TDEE — what is the difference?
BMR (Basal Metabolic Rate) is the minimum number of calories your body needs if you were lying in bed all day — just breathing, digesting, and keeping your heart beating. For most people, BMR accounts for 60-75% of total daily calories burned. Calculate yours with our BMR Calculator.
TDEE (Total Daily Energy Expenditure) adds your physical activity on top of BMR. A sedentary office worker might burn only 20% more than their BMR, while someone with a physically demanding job or intense workout routine could burn 70-100% more. This is why activity level matters so much when calculating your calorie needs. See your full breakdown with our TDEE Calculator.
What to do with your result
Your daily calorie number is the foundation for any nutrition plan. To lose about 1 lb (0.45 kg) per week, eat 500 calories below your TDEE. To gain weight, eat 300-500 calories above it. Once you know your target calories, use our Macro Calculator to split those calories into the right amounts of protein, carbs, and fat for your goal.
If weight loss is your goal, the Weight Loss Calculator can build a personalized timeline showing exactly when you will reach your target. And if you are not sure where you stand, start with a quick BMI check or find your ideal body weight.