Home
Back
Weight Loss Formula:
| From: | To: |
The Most Accurate Weight Loss Calculator estimates calorie deficit using the formula: Deficit = (BMR × Activity Factor) - Intake. It provides a precise assessment of daily calorie deficit needed for effective weight loss.
The calculator uses the weight loss formula:
Where:
Explanation: The equation calculates the difference between your total daily energy expenditure (BMR × Activity Factor) and your calorie intake, showing your daily calorie deficit.
Details: Accurate calorie deficit calculation is crucial for effective weight loss planning, ensuring sustainable progress while maintaining proper nutrition and energy levels.
Tips: Enter your BMR in kcal, activity factor as a decimal value, and daily calorie intake. All values must be valid positive numbers for accurate results.
Q1: What is BMR and how do I calculate it?
A: BMR (Basal Metabolic Rate) is the number of calories your body needs at rest. Various formulas exist to calculate BMR based on age, gender, weight, and height.
Q2: What are typical activity factor values?
A: Activity factors typically range from 1.2 (sedentary) to 2.5 (very active). Common values are: 1.2 (sedentary), 1.375 (light activity), 1.55 (moderate), 1.725 (very active), 1.9 (extremely active).
Q3: What is a healthy calorie deficit?
A: A deficit of 500-1000 kcal per day is generally recommended for safe weight loss of 0.5-1 kg (1-2 lbs) per week.
Q4: Should I aim for the maximum deficit?
A: Extreme deficits can be counterproductive, leading to muscle loss and metabolic adaptation. Moderate, sustainable deficits are more effective for long-term success.
Q5: How often should I recalculate my deficit?
A: Recalculate every 4-6 weeks or after significant weight loss (5-10% of body weight) as your BMR and energy needs will change.