Weight Loss Calculator
Weight Loss Planner
Build a safe, personalized deficit and timeline — tuned for GLP-1 users.
Moderate — 500 cal/day deficit
Complete your profile and hit
Calculate My Plan to see your personalised results.
Daily calorie target
0kcal
BMR 0 · TDEE 0 kcal
Educational estimate only — not medical advice. Consult a licensed provider.
Explore medically guided Weight Loss options based on medical history, goals, and clinical evaluation
Compounded Tirzepatide
$169.00 / month
Compounded Semaglutide
$129.00 / month
Megaburn (MIC+B12)
$79.99 / month
A healthcare provider may prescribe a compounded drug if determined that it is medically appropriate. Compounded semaglutide & tirzepatide are not approved, or evaluated for safety, efficacy, or quality by the FDA.
Six Science-Backed Strategies to Hit Your Goal Weight
Your calorie number is the foundation. These six principles are the structure built on top of it.
Prioritise Protein at Every Meal
Aim for 1.2–1.6g of protein per kg of bodyweight daily. Protein keeps you full longer, has the highest thermic effect of any macronutrient (your body burns ~30% of its calories just digesting it), and is the single most effective tool for preserving lean muscle while in a deficit.
Lift Weights 3× Per Week Minimum
Resistance training builds metabolically active muscle, which permanently raises your resting calorie burn. Even 3 sessions of 45 minutes per week produces measurable body composition changes within 8 weeks — regardless of your starting fitness level.
Drink 500ml Water Before Each Meal
A randomised controlled trial found drinking 500ml of water 30 minutes before meals reduced caloric intake by 13% on average. Water also slightly boosts metabolism and reduces the likelihood of confusing thirst with hunger — one of the most common causes of excess snacking.
Protect 7–9 Hours of Sleep
Sleep deprivation elevates cortisol and ghrelin (the hunger hormone) while suppressing leptin (satiety signal). Studies show people eating the same calorie deficit lose up to 55% less fat when sleeping under 6 hours vs 8.5. Sleep is a metabolic intervention, not optional.
Fill Half Your Plate with Vegetables
High-volume, low-calorie vegetables create satiety through stomach stretch receptors without significant calories. This simple rule reduces caloric density of each meal by 25–35% without reducing physical volume — so you stay fuller for longer on fewer calories.
Track Steps, Not Just Workouts
Non-exercise activity thermogenesis (NEAT) accounts for up to 350 additional calories burned per day in active vs sedentary people. A 10,000-step daily goal adds the equivalent of a 30-minute run in calorie burn, without any gym time. Start wherever you are and build up.
Methods That Work Without Counting
How to Reduce Calories Without Feeling Hungry
The biggest mistake people make is cutting calories by eating less food. The smarter strategy is eating differently — swapping high-calorie-density foods for lower-density alternatives that fill the same physical space in your stomach.
Below are high-impact swaps that save 60–340 calories per meal without reducing meal size or leaving you hungry. These changes alone can account for half your daily deficit target.
Your Custom-Fitted Weight Loss Program Awaits
Complete our brief intake form to receive a doctor‑supervised GLP‑1 plan with flat‑rate pricing—so you can focus on looking and feeling your best. Start now.
The AHC Resource Library
Physician-reviewed guides for every stage of your weight loss journey.
Semaglutide Weight Loss Per Week: A Realistic, Clinical Breakdown
The range of individual responses in STEP 1 was also significant. Around half of participants lost more than 15 percent
What Is a Safe Calorie Deficit to Lose Weight? How to Calculate Yours Without Losing Muscle
Too small a deficit and progress is barely perceptible. Too large a deficit and the body triggers a stress response:
What Does BMI 30 Mean? Health Risks and Your Next Steps
This guide gives you direct, honest answers. No scare tactics, no vague recommendations about eating better. Just a clear breakdown
Ready to Make It Official? Book a Free Physician Consult.
Your calculator results are the starting point. Our physicians review your full health picture, confirm your candidacy for medical therapy, and create a protocol tailored to your timeline and biology — not a template.
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FAQs — Weight Loss Calculator
How accurate is this calculator — can I trust the results?
This calculator uses the Mifflin-St Jeor equation, which is the most accurate BMR formula for the general population according to the Academy of Nutrition and Dietetics. It’s the same formula used by most registered dietitians and clinical weight management programmes. That said, all calculators are estimates — individual metabolism can vary by ±15% due to genetics, thyroid function, medication, and muscle-to-fat ratio. Use your result as a starting point, track your actual weight over 3–4 weeks, and adjust by 100–150 kcal if you’re not seeing expected progress.
Should I recalculate as I lose weight?
Yes — every 5–8kg of weight lost, you should recalculate. A lighter body requires fewer calories to maintain, so your TDEE decreases as you lose weight. Failing to recalculate means your deficit shrinks over time even though you haven’t changed what you’re eating, which is why weight loss often stalls after the first few months. Re-enter your current weight here every 4–6 weeks to keep your calorie target calibrated.
Why does my calorie target seem higher than other calculators I've used?
Most popular calorie calculators use aggressive deficit levels (750–1,000 kcal/day) by default, which produces faster results on paper but causes significant muscle loss and metabolic adaptation in practice. This calculator uses clinically safe deficit ranges of 200–750 kcal/day. A higher calorie target you can sustain for 6 months will always produce better body composition results than a crash diet that triggers binge-restrict cycles. Sustainable slightly beats aggressive every time.
What if my actual weight loss is slower than the calculator predicts?
This is extremely common and almost always expected. The first 1–2 weeks often show a larger drop due to water and glycogen loss, followed by a slower phase of actual fat loss. If after 4 consistent weeks at your calorie target you haven’t lost approximately 80% of the predicted amount, reduce your daily intake by 150 kcal and reassess in another 4 weeks. Also verify you’re tracking cooking oils, sauces, and drinks accurately — these are the most commonly underreported sources.
Can I speed up my results with medication while following this plan?
Yes — and this is where medically supervised care makes a significant difference. GLP-1 medications (Semaglutide, Tirzepatide) work synergistically with calorie restriction by reducing appetite signalling, making it significantly easier to stay within your calorie target consistently. Sermorelin supports the process by stimulating growth hormone, which accelerates fat oxidation and preserves lean muscle during the deficit. Combining this calculator’s guidance with a physician-supervised medical protocol consistently produces superior outcomes compared to diet alone.