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Free Calorie Calculator

Daily Calorie Needs Calculator

Calculate your BMR, TDEE & weight loss calories instantly

Gender

Age

Weight

Height (cm)

Height (ft & in)

Activity Level 🪑 Sedentary – Little or no exercise 🚶 Lightly Active – 1–3 days/week 🏃 Moderately Active – 3–5 days/week 💪 Very Active – 6–7 days/week 🏋️ Extra Active – Intense daily training

🔥 Maintenance Calories (TDEE)

2,200

calories per day

to maintain your current weight

📊 Your BMR: 1,600 cal/day

🥗 Mild Weight Loss

1,950

~0.25 kg/week

⚖️ Weight Loss

1,700

~0.5 kg/week

🎯 Extreme Weight Loss

1,200

~1 kg/week

📈 Weight Gain

2,700

~0.5 kg/week

⚠️ The extreme weight loss target is below the recommended minimum safe intake. Please consult a healthcare professional.

📋 What Is a Calorie Calculator?

A calorie calculator is a science-backed tool that estimates how many calories your body needs each day. It uses your age, gender, weight, height, and activity level to compute your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE). Whether you want to lose weight, gain muscle, or simply maintain your current physique, knowing your daily calorie target is the essential first step.

🧠 How Does This Calculator Work?

Our calculator uses the Mifflin-St Jeor equation, widely regarded as the most accurate BMR formula for the general population. Here's the breakdown:

• BMR (Basal Metabolic Rate): The calories your body burns at complete rest — just to keep your heart beating, lungs breathing, and brain functioning.
• TDEE (Total Daily Energy Expenditure): Your BMR multiplied by an activity factor that reflects your lifestyle and exercise habits.
• Calorie Targets: From your TDEE, we subtract or add calories to create safe, sustainable deficits or surpluses for your goals.

Mifflin-St Jeor Formula:

• Male: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) + 5
• Female: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age) − 161

🏷️ Understanding Activity Levels

Choosing the right activity level is crucial for an accurate TDEE. Here's what each level means:

• Sedentary: Desk job, minimal walking, no structured exercise.
• Lightly Active: Light walking or casual activity 1–3 days per week.
• Moderately Active: Regular exercise 3–5 days per week (e.g., jogging, gym sessions).
• Very Active: Intense workouts 6–7 days per week or a physically demanding job.
• Extra Active: Athletes, daily intense training, or highly physical occupations.

🎯 How to Use Your Results for Weight Loss

Once you have your TDEE, creating a calorie deficit is straightforward:

1. Mild Weight Loss: Eat 250 calories below TDEE → lose ~0.25 kg (0.5 lbs) per week. Ideal for slow, sustainable fat loss.
2. Standard Weight Loss: Eat 500 calories below TDEE → lose ~0.5 kg (1 lb) per week. The most recommended approach.
3. Extreme Weight Loss: Eat 1,000 calories below TDEE → lose ~1 kg (2 lbs) per week. Only suitable under medical supervision. Never go below 1,200 cal/day for women or 1,500 cal/day for men without professional guidance.

💡 Tips for Accurate Calorie Tracking

• Use a food scale for precise portion measurements — eyeballing often leads to underestimation.
• Track everything, including cooking oils, dressings, and beverages.
• Re-calculate your needs every 4–6 weeks as your weight changes.
• Combine calorie awareness with balanced nutrition — prioritize protein, fiber, and healthy fats.
• Stay hydrated and get adequate sleep; both significantly impact metabolism.

❓ Frequently Asked Questions

Q: What's the difference between BMR and TDEE?

BMR is the calories your body needs at complete rest. TDEE includes all daily activities and exercise on top of your BMR. TDEE is the number you should base your diet on.

Q: How many calories should I eat to lose weight safely?

A deficit of 500 calories per day (from your TDEE) results in roughly 0.5 kg of fat loss per week, which is considered safe and sustainable for most people.

Q: Can I use this calculator for muscle gain?

Yes! The "Weight Gain" result shows a 500-calorie surplus above your TDEE, which supports lean muscle building when combined with strength training and adequate protein intake.

Q: Is the Mifflin-St Jeor equation accurate?

It's considered the most accurate BMR formula for the general population, typically within 10% of lab-measured values. Individual variations exist, so use results as a starting point and adjust based on real-world progress.

Q: How often should I recalculate my calorie needs?

Recalculate every 4–6 weeks or after every 3–5 kg of weight change, as your BMR shifts with your body composition.

⚠️ Disclaimer: This calculator provides estimates based on mathematical formulas. Results are for informational purposes only and should not replace professional medical or dietary advice. Always consult a qualified healthcare provider before starting any weight loss or exercise program.