Calorie Deficit Formula:
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This calculator helps determine the daily calorie intake needed to lose 2 pounds per week based on your maintenance calories. It uses the established principle that a 1000 kcal daily deficit results in approximately 2 pounds of weight loss per week.
The calculator uses the following formula:
Where:
Explanation: To lose 2 pounds per week, you need to create a daily deficit of 1000 calories (500 kcal × 2) from your maintenance level.
Details: Creating a consistent calorie deficit is the fundamental principle behind weight loss. A 1000 kcal daily deficit is considered a aggressive but sustainable approach for many individuals seeking significant weight loss.
Tips: Enter your maintenance calorie level (the number of calories you need to maintain your current weight). The calculator will subtract 1000 calories to give you your target daily intake for 2 lbs/week weight loss.
Q1: Is losing 2 pounds per week safe?
A: For most overweight individuals, losing 2 pounds per week is considered safe and effective. However, consult with a healthcare professional before starting any aggressive weight loss program.
Q2: How do I determine my maintenance calories?
A: Maintenance calories can be estimated using online calculators, metabolic testing, or by tracking your food intake and weight over several weeks.
Q3: What if 1000 calories is too low for me?
A: Never go below 1200 calories for women or 1500 calories for men without medical supervision. If the calculation puts you below these levels, consider a slower weight loss approach.
Q4: Will I lose exactly 2 pounds every week?
A: Weight loss isn't always linear. You may experience fluctuations due to water retention, muscle gain, and other factors, but the average should be around 2 pounds per week.
Q5: Should I adjust my deficit as I lose weight?
A: Yes, as you lose weight, your maintenance calories decrease. Recalculate your target calories every 5-10 pounds lost for continued progress.