Calorie Deficit Calculator
Calculate the daily calorie deficit needed to reach your goal weight. Get a safe calorie target, weekly milestones, and warnings if your plan is too aggressive.
Enter your details and weight loss goal to see your calorie deficit plan.
How to Use the Calorie Deficit Calculator
- Enter your age, gender, height, and current weight.
- Set your goal weight and desired timeline in weeks.
- Choose your activity level for accurate TDEE calculation.
- Review daily calorie target, deficit, and weekly milestones.
Safe Weight Loss Guidelines
A safe rate of weight loss is 0.5 to 1 kg (1-2 lbs) per week. This requires a daily deficit of 500-1000 calories. Very low calorie diets (below 1200 for women or 1500 for men) should only be done under medical supervision. Losing weight too quickly can lead to muscle loss and nutritional deficiencies.
Features
- TDEE-based calorie deficit calculation
- Safe minimum calorie warnings
- Weekly weight loss milestones
- Aggressive rate warnings
- Metric and imperial unit support
- 100% private, no data stored
Disclaimer:This tool is provided “as is” for informational and educational purposes only. Results may not be 100% accurate. ToolBird makes no warranties, express or implied, regarding the accuracy, reliability, or completeness of any output generated by this tool. This tool does not constitute professional, legal, financial, medical, or tax advice. Always consult a qualified professional for important decisions. By using this tool, you agree that ToolBird and its operators shall not be held liable for any damages, losses, or consequences arising from the use of this tool or reliance on its results. All processing occurs in your browser — we do not store, transmit, or access your data. Use at your own risk.