Calorie Calculator
Your Daily Calorie Needs
Basal Metabolic Rate (BMR):
0 kcal
To Maintain Weight (TDEE):
0 kcal
Mild Weight Loss (-0.25 kg/week):
0 kcal
Weight Loss (-0.50 kg/week):
0 kcal
Weight Gain (+0.50 kg/week):
0 kcal
Description
This Calorie Calculator is a free digital tool designed to estimate the number of daily calories your body needs to maintain, lose, or gain weight. This system accurately determines daily energy requirements based on your age, gender, height, and weight to help you efficiently manage your physical nutritional balance.
How This Calculator Works
The code of this calculator operates through a dual-step logical algorithm:
- Step 1: Calculate the Basal Metabolic Rate (BMR). This uses the highly accurate Mifflin-St Jeor Equation, which is considered the most reliable method for predicting caloric needs at complete rest. For males, the algorithm calculates $10 \times \text{weight} + 6.25 \times \text{height} - 5 \times \text{age} + 5$. For females, it computes $10 \times \text{weight} + 6.25 \times \text{height} - 5 \times \text{age} - 161$.
- Step 2: Apply Activity Multipliers (TDEE). To find your active calorie burn, the system multiplies the BMR with adaptive variables reflecting physical movement (ranging from $1.2$ for sedentary lifestyles to $1.9$ for highly active routines).
How to Use This Tool
- Select your physical Gender from the options.
- Enter your exact Age in years.
- Input your current Weight in kilograms (kg).
- Enter your Height in centimeters (cm).
- Select your average physical Activity Level from the dropdown menu.
- Click on Calculate Calories to see your customized calorie readouts.