Calorie Deficit Calculator
Calorie deficit calculator: enter stats and goal weight for a daily target at three deficit levels (300/500/750 kcal), weeks to goal, and safe minimum warnings.
Frequently Asked Questions
How big should my calorie deficit be?▼
A daily deficit of 300-500 kcal is recommended, losing about 0.5-1 lb of fat per week. Deficits above 750 kcal risk muscle loss and metabolic slowdown.
Is 7700 kcal equal to 1 kg of fat?▼
Yes. A cumulative deficit of about 7700 kcal burns roughly 1 kg of body fat. A 500 kcal daily deficit takes about 15 days per kilogram.
How do I use the Daily Calorie Calculator?▼
Open the page and fill in the input fields — results update automatically. Calorie needs from BMR and activity factor.
Are the results accurate?▼
Results follow published international standards (WHO, ACE, IOM) and are for reference only.
Can this replace medical advice?▼
No. Always consult a qualified healthcare professional for health decisions.
This is a dedicated variant of the Daily Calorie Calculator, pre-configured for this scenario with tailored FAQs.