Calorie Calculator

Estimate your daily calorie requirements for weight maintenance, weight loss, or muscle gain.

Calorie Calculator Options
Result Details
Enter parameters and click Calculate to view.
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Diet & Fitness Tool

Calorie Calculator

Determine your Daily Total Energy Expenditure (TDEE) and dietary targets.

100% Free & Local
STEP 01

Enter Metrics

Provide your current age, gender, height (cm), and weight (kg) to establish your baseline.

STEP 02

Select Activity

Choose your physical activity multiplier from sedentary (desk job) to highly active athlete.

STEP 03

Specify Goal

Select your targets, such as losing weight, maintaining weight, or building lean muscle mass.

STEP 04

View Target

Analyze the resulting TDEE calorie benchmarks and calculated macronutrient goals.

Your Privacy Matters

All calculations run locally in your browser.

No Server Uploads

No variables or results are sent to our servers.

Auto-Cleared

Your session data is erased upon closing the tab.


Capabilities

Key Capabilities

Complete Features

Mifflin-St Jeor Formula

Calculates Basal Metabolic Rate using the most clinically accurate standard equation.

TDEE Staging

Translates resting metabolic thresholds into daily active energy needs depending on exercise routines.

Caloric Threshold Maps

Details targeted calorie adjustments for mild or extreme fat loss and bulking.

Metric & Imperial Norms

Accepts input formats in kilograms/centimeters or pounds/inches seamlessly.

Local Data Safety

Your height, weight, and fitness parameters remain private and process solely inside your browser.


Help

Common Questions Answered

Support
Q1 What is the Mifflin-St Jeor formula?
It is a mathematical formula that estimates Basal Metabolic Rate (BMR) based on weight, height, and age, widely considered the most accurate metabolic predictor.
Q2 What is the difference between BMR and TDEE?
BMR is the energy required to stay alive at complete rest, while TDEE is BMR multiplied by your physical activity level, reflecting total daily energy burn.
Q3 How many calories should I cut to lose weight safely?
A deficit of 500 calories per day is standard for a safe weight loss rate of 0.5 kg (1 lb) per week. Cutting more can cause muscle loss.
Q4 Does this calculator factor in body fat percentage?
This calculator uses the Mifflin-St Jeor equation, which is based on total body weight. Lean body mass variations are accounted for via active variables.
Q5 Is this safe for pregnant or lactating individuals?
No. Pregnancy and lactation create highly unique nutritional requirements. Please consult an obstetrician or dietitian for custom goals.