Calorie Equation:
From: | To: |
This calculator estimates the daily calorie intake needed to lose weight based on your Basal Metabolic Rate (BMR) and activity level, creating a 500 kcal/day deficit for steady weight loss.
The calculator uses the equation:
Where:
Explanation: The equation accounts for your base metabolic needs plus activity expenditure, then subtracts 500 kcal to create a weight loss deficit.
Details: Accurate calorie estimation is crucial for safe and effective weight loss, preventing excessive deficits that could lead to muscle loss or metabolic slowdown.
Tips: Enter your BMR (from a BMR calculator), select your activity level. For best results, combine with regular exercise and balanced nutrition.
Q1: Why subtract 500 calories?
A: A 500 kcal/day deficit typically results in about 1 pound (0.45 kg) of weight loss per week, a safe and sustainable rate.
Q2: What if I want faster weight loss?
A: We don't recommend deficits larger than 500-750 kcal/day without medical supervision to prevent muscle loss and nutrient deficiencies.
Q3: How accurate is this calculation?
A: It provides a good estimate, but individual variations in metabolism may require adjustments based on actual results.
Q4: Should I eat back exercise calories?
A: The activity factor already accounts for exercise, so no need to eat additional calories unless you feel excessively fatigued.
Q5: When should I recalculate my needs?
A: Recalculate every 10-15 pounds lost, as your BMR decreases with weight loss.