Calorie Tracker Calculator

Monitor your daily caloric intake and expenditure. Track meals, exercises, and nutritional goals while maintaining a detailed food diary.

About Calorie Tracker Calculator

Overview

Track your daily caloric balance by logging calories consumed through food and calories burned through exercise. The calculator maintains a running total, showing your net caloric intake to help you understand your daily energy balance.

Historical Context

The calorie as a unit of energy measurement was introduced by Nicolas Clément in 1824. Modern understanding of human metabolism and energy balance emerged through the pioneering work of Wilbur Atwater and Francis Benedict in the late 19th century, establishing the foundations of nutritional science.

Energy Fundamentals

1 Calorie = 4.184 Kilojoules TDEE = BMR × Activity Factor Weight Change = (Calories In - Calories Out) / 7700

TDEE: Total Daily Energy Expenditure
BMR: Basal Metabolic Rate
7700 kcal ≈ 1kg of body fat
Daily fluctuations normal

Macronutrient Energy

Nutrient	Energy Content	Recommended Range
Carbohydrates	4 kcal/g	45-65%
Proteins	4 kcal/g	10-35%
Fats	9 kcal/g	20-35%
Alcohol	7 kcal/g	N/A

Energy Expenditure

Component	% of TDEE	Description
BMR	60-75%	Basal Metabolic Rate
NEAT	15-30%	Non-Exercise Activity Thermogenesis
TEF	10%	Thermic Effect of Food
Exercise	5-30%	Planned Physical Activity

Weight Management

Goal	Daily Caloric Adjustment	Weekly Change
Weight Loss	-500 to -750 kcal	-0.5 to -0.7 kg
Maintenance	TDEE	0 kg
Weight Gain	+300 to +500 kcal	+0.3 to +0.5 kg

Exercise Intensity Guide

Intensity	METs	Example Activities
Light	3-4	Walking, light housework
Moderate	5-7	Brisk walking, cycling
Vigorous	8+	Running, intense sports

Learn More

Harvard Health: Calorie Counting Guide USDA DRI Calculator WHO: Healthy Diet Guidelines