Free Calorie Deficit Calculator

This calculator uses the scientifically-validated Mifflin-St Jeor equation to estimate your Basal Metabolic Rate (BMR), then applies activity multipliers to calculate your Total Daily Energy Expenditure (TDEE). Weight loss targets are based on creating appropriate calorie deficits.

Results are general guidelines and may not be accurate for everyone due to individual variation in genetics, body composition, medical conditions, and other factors. This tool is intended for informational purposes only. Before making significant changes to your diet or exercise routine, please consult with a qualified healthcare professional or registered dietitian. Learn more about our methodology.