1. What Is This Calculator?

This calculator determines your daily calorie intake needed to reach your goal weight by a specific date, based on your TDEE (Total Daily Energy Expenditure) and weight loss goals.

2. How The Calculation Works

The calculator uses the weight loss formula:

Where:

• \( TDEE \) — Your total daily energy expenditure (calories you burn daily)
• \( Current Weight \) — Your current weight in pounds
• \( Goal Weight \) — Your target weight in pounds
• \( Days in Range \) — Number of days to reach your goal
• 3500 — Calories in one pound of body fat

Explanation: The formula calculates the calorie deficit needed per day to lose the specified weight in the given timeframe.

3. Importance of Calorie Deficit

Details: To lose weight, you need to consume fewer calories than you burn. A deficit of 500 kcal/day typically results in about 1 lb of weight loss per week.

4. Using The Calculator

Tips: For best results, use an accurate TDEE calculation. Be realistic with your timeframe - healthy weight loss is typically 1-2 lbs per week.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculator?
A: It provides estimates based on the 3500 kcal/lb rule, which is a general guideline. Individual results may vary.

Q2: What if I want to gain weight?
A: Simply add calories instead of subtracting from your TDEE (reverse the formula).

Q3: Why 3500 calories per pound?
A: This is the estimated energy contained in one pound of body fat, though composition changes may affect this.

Q4: What's a safe minimum calorie intake?
A: Generally not below 1200 kcal/day for women or 1500 kcal/day for men without medical supervision.

Q5: Should I adjust as I lose weight?
A: Yes, recalculate periodically as your TDEE decreases with weight loss.