Calorie Calculator

Calculate your daily calorie needs based on your age, gender, weight, height, and activity level. Get personalized recommendations for weight loss, maintenance, or muscle gain.

years
kg
cm

BMR Calculation Methods

Mifflin-St Jeor (Used Here)

Men: (10 × weight) + (6.25 × height) - (5 × age) + 5
Women: (10 × weight) + (6.25 × height) - (5 × age) - 161

Most accurate for modern lifestyles. Used by many nutritionists.

Harris-Benedict

Men: 88.362 + (13.397 × weight) + (4.799 × height) - (5.677 × age)
Women: 447.593 + (9.247 × weight) + (3.098 × height) - (4.330 × age)

Classic formula, revised in 1984. Still widely used.

TDEE Calculation

TDEE = BMR × Activity Level

Total Daily Energy Expenditure based on your activity level.

Activity Level Guide

Sedentary (1.2)
Little or no exercise
Desk job, minimal physical activity
Lightly Active (1.375)
Exercise 1-3 times/week
Light exercise or sports, some walking
Moderately Active (1.55)
Exercise 3-5 times/week
Regular moderate exercise or sports
Very Active (1.725)
Exercise 6-7 times/week
Hard exercise daily or physical job
Extremely Active (1.9)
Very hard exercise + physical job
Training twice per day, marathon, competition

Calorie & Diet Tips

Track Your Progress

Monitor your weight weekly, not daily. Weight fluctuates naturally due to water retention and other factors.

Focus on Whole Foods

Prioritize vegetables, fruits, lean proteins, whole grains, and healthy fats. They're more satiating per calorie.

Stay Hydrated

Drink plenty of water. Sometimes thirst is confused with hunger. Aim for 8-10 glasses daily.

Practice Portion Control

Use smaller plates, measure portions, and be mindful of serving sizes, especially calorie-dense foods.

Combine Diet with Exercise

Strength training helps maintain muscle during weight loss. Cardio burns extra calories.

Get Enough Sleep

Poor sleep affects hunger hormones (ghrelin & leptin), leading to increased appetite and cravings.

Understanding Macronutrients

Protein

4 calories per gram

Functions: Builds and repairs muscle, supports immune function, hormone production

Sources: Chicken, fish, eggs, tofu, legumes, Greek yogurt

Recommendation: 25-35% of total calories

Carbohydrates

4 calories per gram

Functions: Primary energy source, fuel for brain and muscles

Sources: Rice, pasta, bread, fruits, vegetables, oats

Recommendation: 40-50% of total calories

Fats

9 calories per gram

Functions: Hormone production, vitamin absorption, cell structure

Sources: Avocado, nuts, olive oil, fatty fish, seeds

Recommendation: 20-30% of total calories

Frequently Asked Questions

How accurate is this calorie calculator?

This calculator uses the Mifflin-St Jeor equation, which is one of the most accurate formulas available. However, individual metabolic rates can vary by 10-15%. Use the results as a starting point and adjust based on your actual progress.

How much of a calorie deficit is safe for weight loss?

A deficit of 500-750 calories per day typically results in 0.5-1 kg (1-1.5 lbs) weight loss per week, which is considered safe and sustainable. Deficits larger than 1000 calories should only be done under medical supervision.

Should I eat back calories burned from exercise?

If you selected the correct activity level, your exercise is already accounted for in your TDEE. You don't need to eat back exercise calories unless you're doing significantly more activity than usual.

Why isn't the scale moving even though I'm in a calorie deficit?

Weight loss isn't always linear. Water retention, hormonal changes, muscle gain, and digestive contents can mask fat loss. If the scale hasn't moved after 2-3 weeks, reassess your calorie intake or activity level.

Do I need to count calories to lose weight?

While calorie counting is effective, it's not mandatory. Some people succeed with portion control, intuitive eating, or diet quality improvements. However, tracking provides the most precise control.

How often should I recalculate my calorie needs?

Recalculate every 4-5 kg (10 lbs) of weight loss or every 2-3 months. As you lose weight, your calorie needs decrease.