Calorie Calculator

Understanding Calorie Needs and Canada’s Food Guide

Your Total Daily Energy Expenditure (TDEE) is calculated by multiplying your Basal Metabolic Rate (BMR) by an activity factor. This calculator uses the Mifflin-St Jeor equation, which research has shown to be the most accurate BMR formula for most adults. BMR represents the calories your body burns at complete rest to maintain vital functions such as breathing, circulation, and cell repair — it typically accounts for 60–75% of total daily energy expenditure.

Health Canada’s 2019 Canada’s Food Guide moved away from rigid calorie counting and food group servings, instead emphasizing the proportion of whole foods on your plate: half vegetables and fruits, one quarter whole grains, and one quarter protein foods. The guide also recommends making water your beverage of choice and being mindful of eating habits. For those tracking calories, Health Canada’s Dietary Reference Intakes provide age- and sex-specific estimated energy requirements.

Estimated Daily Calorie Needs (Health Canada)

A sustainable calorie deficit for weight loss is 500 calories per day, resulting in approximately 0.45 kg (1 lb) of weight loss per week. Health Canada advises against very low-calorie diets (under 1,200 for women or 1,500 for men) without medical supervision. Combining modest calorie reduction with 150 minutes of moderate physical activity per week — as recommended by the Canadian Physical Activity Guidelines — produces the most sustainable results.