Daily Calorie Calculator (TDEE)
Calculate your Total Daily Energy Expenditure and calorie needs for your goals.
What is Calorie Calculator?
A Calorie Calculator — more precisely a Total Daily Energy Expenditure (TDEE) calculator — estimates how many calories your body burns each day based on your age, sex, height, weight, and activity level. TDEE is the foundation of all evidence-based nutrition planning: to lose weight, eat below TDEE; to gain weight (muscle), eat above it; to maintain weight, eat at it.
The calculator uses the Mifflin-St Jeor equation (the most accurate validated formula for most adults) to calculate your Basal Metabolic Rate (BMR) — calories burned at complete rest — then multiplies by an activity factor ranging from sedentary (1.2) to extra active (1.9) to account for movement and exercise. The result is your TDEE: your true daily caloric target.
This tool is used by people on weight loss journeys, bodybuilders in bulking or cutting phases, athletes optimizing performance nutrition, dietitians creating meal plans, and anyone who wants to eat intentionally rather than by guesswork. Understanding your TDEE transforms nutrition from a confusing maze of diets into a simple numbers game — consume less than TDEE to lose fat, more to build muscle.
How to Use Calorie Calculator
- 1Step 1: Enter your biological sex — male or female — as the Mifflin-St Jeor formula uses different coefficients for each due to metabolic differences.
- 2Step 2: Enter your age in years, current weight, and height. Use metric (kg/cm) or imperial (lbs/inches) depending on your preference.
- 3Step 3: Select your activity level honestly: sedentary (desk job, little exercise), lightly active (1–3 workouts/week), moderately active (3–5 workouts/week), very active (6–7 hard workouts/week), or extra active (physical job plus training).
- 4Step 4: Set your goal — weight loss, maintenance, or muscle gain — to receive calorie targets adjusted from your TDEE (typically -500 for weight loss, +300–500 for muscle gain).
- 5Step 5: Use the resulting calorie target to guide your daily food intake, tracking with a food diary app for the first few weeks until you develop an intuitive sense of portions.
Benefits of Using Calorie Calculator
- ✓Personalized Starting Point: Unlike generic 2,000-calorie recommendations, TDEE is calculated specifically for your body, age, and lifestyle — dramatically improving accuracy.
- ✓Evidence-Based Weight Management: Calorie balance is the scientifically validated primary driver of weight change — this calculator quantifies your personal energy equation.
- ✓Goal-Specific Targets: Receive separate calorie targets for weight loss, maintenance, and muscle building rather than one-size-fits-all recommendations.
- ✓Plateau Diagnosis: If weight loss stalls, recalculate TDEE with current weight (since lighter bodies burn fewer calories) to recalibrate your targets and break through plateaus.
- ✓Diet Plan Foundation: Use your TDEE as the basis for any structured eating approach — keto, Mediterranean, intermittent fasting — regardless of which macronutrient distribution you prefer.
- ✓Activity Level Impact Visualization: See exactly how much your daily calorie needs change between a sedentary and active lifestyle, motivating you to incorporate more movement.
Example
About Calorie Calculator
Calorie Calculator estimates your Total Daily Energy Expenditure (TDEE) based on age, sex, height, weight, and activity level using the Mifflin-St Jeor equation. It shows recommended calories for maintenance, weight loss, and weight gain. A foundational tool for nutrition planning.
- Mifflin-St Jeor equation
- Activity level multiplier
- Maintenance, loss, and gain targets
- Metric and imperial input