# Lose 5 Pounds in 2 Weeks Calculator Lose 5 pounds in 2 weeks calculator: get your TDEE, daily calorie target, macros, and 14-day plan to drop 5 lb safely through diet and exercise. ## What this calculates Want to drop 5 pounds in 14 days? This calculator builds the deficit math for you. Enter your stats and it returns your maintenance calories, daily deficit, macro targets, and a plan to reach the goal without crashing your metabolism. ## Inputs - **Gender** - **Current Weight** (lb) — min 80, max 600 - **Height** (in) — min 48, max 96 - **Age** (years) — min 13, max 90 - **Activity Level** — options: Sedentary (desk job, no exercise), Lightly active (1-3 days/week), Moderately active (3-5 days/week), Very active (6-7 days/week) ## Outputs - **Maintenance Calories (TDEE)** — Calories needed to maintain your current weight - **Required Daily Deficit** — Deficit needed to lose 5 lb in 14 days - **Daily Calorie Target** — Eat this many calories per day for 14 days - **Feasibility** — formatted as text — Is 5 lb in 2 weeks realistic for your stats? - **Daily Protein Target** — Protein needed to protect muscle mass (~1 g per lb bodyweight) - **Daily Fat Target** — Minimum fat for hormone function (25% of calories) - **Daily Carb Target** — Remaining calories as carbs - **Expected Weight Breakdown** — formatted as text — How much of the 5 lb comes from fat vs water glycogen - **14-Day Plan** — formatted as text — Day-by-day approach to hit the target ## Details The math: 5 pounds in 2 weeks One pound of body fat stores about 3,500 calories of usable energy. Five pounds is therefore 17,500 calories. Spread over 14 days, you need a daily calorie deficit of 1,250 calories below your total daily energy expenditure (TDEE). That is an aggressive deficit. For most people it requires both eating less and exercising more. A 180 lb woman at TDEE 2,100 would need to eat 850 kcal/day to hit 1,250 deficit on diet alone, which is below the 1,200 safe minimum. The better approach: 1,300 kcal from food plus 200-300 kcal burned through exercise. What the 5 pounds is actually made of Not all of the loss on the scale is fat. When you cut calories, your body first burns through liver and muscle glycogen (roughly 400-500g of stored carbs) along with the 3 grams of water each gram of glycogen holds. That alone is 3-4 lb of scale weight loss in the first 3-5 days, and it comes back fast if you eat carbs normally again. - Week 1: ~3 lb on the scale (mostly glycogen water plus some fat) - Week 2: ~2 lb on the scale (shifts toward actual fat loss) - Actual fat lost in 14 days: typically 2-3 lb of pure body fat - Actual water and glycogen lost: typically 2-3 lb This is why rapid weight loss often rebounds when you return to normal eating. The glycogen and water come back within days. To keep the weight off, transition gradually back to maintenance calories over a week or two. Is 5 lb in 2 weeks safe? The American College of Sports Medicine and most dietitians recommend a maximum rate of 1-2 lb per week for sustainable fat loss. 5 lb in 2 weeks equals 2.5 lb/week, which is at the high end. It is reasonable for: - People with at least 20-30 lb to lose (more glycogen and water buffer) - Short-term goals (wedding, vacation, photo shoot) - Adults under medical supervision - Athletes cutting weight for competition It is not appropriate for people who are already lean, adolescents, pregnant or breastfeeding women, or anyone with a history of disordered eating. A slower 1-1.5 lb per week pace preserves more muscle and is easier to sustain. Daily structure for 14 days Hit these four pillars every day for best results: - Protein: 1 gram per pound of body weight. Protein protects lean muscle during a deficit and increases satiety. A 180 lb person needs ~180g protein per day. - Strength training: 3-4 sessions focused on compound lifts (squats, deadlifts, presses). This preserves muscle so the lost weight comes from fat. - NEAT (non-exercise activity): Target 8,000-10,000 steps per day. Walking is the easiest way to increase daily energy expenditure. - Sleep: 7-9 hours. Poor sleep tanks leptin and ghrelin, making hunger much harder to manage and slowing fat loss by up to 55 percent according to studies. Foods that make 5 lb in 2 weeks easier High-volume, low-calorie, high-protein foods fill you up without blowing the deficit: - Chicken breast, turkey, white fish (200 kcal per 200g, 40g protein) - Greek yogurt 0% (100 kcal per 200g, 17g protein) - Egg whites (170 kcal per 10 whites, 36g protein) - Broccoli, spinach, peppers, zucchini (50 kcal or less per cup) - Berries, watermelon (50-80 kcal per cup, lots of water) - Pickles, broth-based soups, herbal tea (essentially free calories) What to avoid for 14 days - Alcohol (empty calories, disrupts sleep, stalls fat loss) - Liquid calories: juice, sweetened coffee drinks, smoothies over 300 kcal - Restaurant meals you can't track accurately - Sodium bombs before weigh-ins (pizza, fries, soy sauce, cured meats) - Weekend binges that add 2,000-3,000 unplanned calories ## Frequently Asked Questions **Q: Is it realistic to lose 5 pounds in 2 weeks?** A: Yes, for many adults with at least 20 lb to lose. You need a daily calorie deficit of 1,250 calories (17,500 total over 14 days). Expect about 2-3 lb of actual fat loss and 2-3 lb of water and glycogen loss, especially in week 1. People who are already lean, very small, or have limited weight to lose will find this rate unsustainable and should target 2-3 lb in 2 weeks instead. **Q: How many calories should I eat to lose 5 pounds in 2 weeks?** A: Subtract 1,250 from your TDEE. If your maintenance is 2,200 kcal/day, eat 950 kcal/day, though this is below safe minimums. A better approach is 1,500 kcal/day food plus 400 kcal/day burned through exercise. Women should not go below 1,200 kcal/day and men should not go below 1,500 kcal/day without medical supervision. The calculator above does this math using the Mifflin-St Jeor equation. **Q: Will I gain the weight back after 2 weeks?** A: The glycogen and water portion, about 2-3 lb, will return within days if you eat carbs normally again. The fat portion (typically 2-3 lb) stays off if you transition back to maintenance calories gradually. To keep the full 5 lb off, move to a moderate 300-500 kcal/day deficit for another 2-4 weeks, then eat at maintenance. Crash diets followed by normal eating almost always rebound. **Q: Do I need to exercise to lose 5 pounds in 14 days?** A: For most people, yes. A 1,250 kcal daily deficit is hard to hit through diet alone without dropping below safe calorie minimums. Exercise fills the gap: 45 minutes of brisk walking burns 300 kcal, a 30-minute strength workout burns 200-300 kcal, and a 45-minute bike ride burns 400 kcal. Strength training is especially important because it preserves muscle during the deficit, so the lost weight comes from fat rather than lean tissue. **Q: What should my macros look like?** A: Prioritize protein at 1 gram per pound of body weight to protect muscle (a 180 lb person needs ~180g). Set fat at 25 percent of daily calories for hormone function (around 50g for a 1,800 kcal plan). Fill the remaining calories with carbs, minimum 50g/day to avoid lethargy. The calculator above splits your daily target into protein, fat, and carb grams automatically. **Q: How fast will I see results on the scale?** A: The first 3-5 days often show 3-4 lb of scale drop as glycogen and water flush. Days 5-10 the rate slows as fat loss takes over, typically 0.3-0.5 lb/day. The last few days may stall or even show a small gain from water retention before the final drop. Weigh yourself at the same time every morning, after the bathroom and before eating. Track a 7-day rolling average rather than reacting to daily fluctuations. --- Source: https://vastcalc.com/calculators/health/lose-5-pounds-2-weeks Category: Health & Fitness Last updated: 2026-04-08