Calorie Deficit Formula:
From: | To: |
A calorie deficit occurs when you consume fewer calories than your body expends. This energy imbalance forces your body to use stored fat for fuel, resulting in weight loss over time.
The calculator uses the calorie deficit formula:
Where:
Explanation: Since one pound of body fat contains approximately 3500 calories, this formula calculates the daily calorie deficit needed to achieve your weekly weight loss goal.
Details: Creating a consistent calorie deficit is the fundamental principle behind weight loss. Understanding your required deficit helps you plan meals and exercise effectively while ensuring sustainable progress.
Tips: Enter your desired weekly weight loss goal in pounds. For sustainable weight loss, aim for 1-2 pounds per week. Values must be positive numbers.
Q1: What is a safe calorie deficit?
A: A deficit of 500-1000 calories per day is generally safe, resulting in 1-2 pounds of weight loss per week.
Q2: Can I create too large of a deficit?
A: Yes, deficits larger than 1000 calories per day can lead to muscle loss, nutrient deficiencies, and metabolic slowdown.
Q3: How do I know my maintenance calories?
A: Maintenance calories vary by age, gender, weight, height, and activity level. Use a TDEE calculator for accurate estimation.
Q4: Should I adjust my deficit as I lose weight?
A: Yes, as you lose weight, your maintenance calories decrease, so you may need to recalculate your deficit periodically.
Q5: Is exercise necessary for creating a deficit?
A: While diet is primary for creating a deficit, exercise helps preserve muscle mass and can create additional calorie expenditure.