Skip to main content
Health Tool

Calorie Calculator

Estimate your daily calorie needs using BMR and activity level. Switch units, choose a goal for maintenance, fat loss, or gain, and see a simple calorie and macro breakdown instantly.

yrs
cm
kg
Daily calorie target
0
Maintain weight

Enter your age, size, and activity level to estimate BMR, TDEE, and daily calorie targets for your goal.

Calorie view
BMR
0
TDEE
0
Goal
0
BMR estimate

--

TDEE estimate

--

Weekly goal change

--

Activity multiplier

--

Macro split A balanced example split uses 30% protein, 40% carbs, and 30% fat based on your calorie target.
Meal planning note Use the target as a starting point. Adjust after a few weeks based on real progress, energy, hunger, and consistency.
Protein --
Carbs --
Fat --
Goal summary --
Recent calorie checks
No saved entries yetYour recent calorie estimates will appear here on this device.

How to Use the Calorie Calculator

  • Enter your age, gender, height, weight, and activity level.
  • Select whether your goal is to maintain weight, lose weight, or gain weight.
  • Click calculate to see your estimated BMR, TDEE, and daily calorie target.
  • Review the sample macro breakdown and use the result as a starting estimate, not a medical diagnosis.

What Is Calorie Intake?

Calorie intake is the total energy you consume from food and drinks in a day. Your body uses this energy to support basic functions like breathing and circulation, along with movement, exercise, digestion, and recovery.

BMR and TDEE explained

BMR, or Basal Metabolic Rate, estimates how many calories your body needs at rest. TDEE, or Total Daily Energy Expenditure, adds your activity level to show a fuller picture of daily energy needs. This tool uses the Mifflin-St Jeor equation to estimate BMR, then multiplies it by activity level to estimate TDEE.

How many calories per day?

There is no single perfect number for everyone. Age, size, sex, activity level, and goals all affect calorie needs. Daily targets are best treated as informed starting points that can be adjusted based on real progress and consistency.

Weight loss vs maintenance calories

Maintenance calories aim to keep your body weight roughly stable. Weight loss targets are typically set below maintenance, while weight gain targets are set above it. A moderate change is often easier to sustain than an aggressive one.

Activity levels explained

Activity multipliers estimate how much movement you do across the day. Sedentary fits mostly sitting, lightly active includes some walking or training, moderately active fits regular exercise, and very active or extra active fits hard training or physically demanding routines.

Frequently Asked Questions

How do I calculate daily calories?

Enter your details and activity level.

Is this tool free?

Yes.

Can I use it for weight loss?

Yes.

Is it accurate?

It gives an estimate based on formulas.