Find Your Daily Calorie Cut
Enter your current weight, goal weight, timeline, and optional maintenance calories to estimate how many calories to cut per day.
What this calories to cut calculator does
This tool estimates the calorie deficit needed to move from your current weight to your goal weight in your chosen timeline. It uses a common planning rule: approximately 3,500 calories per pound of body weight. While real-world fat loss is not perfectly linear, this formula is still useful for setting a practical starting target.
How the math works
Step 1: Calculate total pounds to lose
Pounds to lose = current weight − goal weight.
Step 2: Convert pounds into calories
Total calorie deficit needed = pounds to lose × 3,500.
Step 3: Spread across your timeline
Daily calorie cut = total deficit ÷ (weeks × 7).
How to use your result
- Use the daily calorie cut as your starting deficit target.
- If you entered maintenance calories, use the suggested intake as your daily calorie budget.
- Track your average weekly weight trend, not day-to-day fluctuations.
- Adjust every 2 to 4 weeks based on progress.
Choosing a realistic deficit
Bigger deficits can speed up early scale changes, but may increase hunger, fatigue, and muscle loss risk. Most people do better with moderate cuts.
- 250–500 calories/day: sustainable pace for many adults.
- 500–750 calories/day: faster progress, but monitor energy and recovery.
- 1,000+ calories/day: aggressive; usually needs close supervision and careful nutrition planning.
Why results may differ from estimates
Weight change is influenced by water retention, sodium, stress, sleep, hormonal factors, training volume, and digestive content. Also, as body weight drops, calorie needs decrease. This means your actual rate may slow over time even with good consistency.
Common reasons progress stalls
- Underestimating portion sizes and snack calories
- Reduced spontaneous movement (lower daily activity)
- Weekend calorie overages offsetting weekday deficits
- Inadequate protein intake and low satiety meals
Practical fat-loss tips
- Prioritize protein at each meal to protect lean mass.
- Base meals on high-volume foods (vegetables, fruit, potatoes, legumes).
- Keep a step goal to maintain daily energy expenditure.
- Strength train 2–4 times per week if possible.
- Sleep 7–9 hours to improve hunger regulation and recovery.
Example scenario
If you weigh 200 lb, want to reach 180 lb, and choose 20 weeks:
- Pounds to lose: 20 lb
- Total deficit: 20 × 3,500 = 70,000 calories
- Daily deficit: 70,000 ÷ 140 days = 500 calories/day
If your maintenance is 2,500 calories/day, your starting intake target would be about 2,000 calories/day.
Important note
This calculator is educational and not medical advice. If you have a history of eating disorders, are pregnant, breastfeeding, under 18, or managing a medical condition, consult a qualified healthcare professional before starting a fat-loss plan.