Get a clear, science-based explanation of your metabolism — and what to do next.
Most people don’t fail at weight loss because of willpower.
They fail because their metabolism, muscle mass, intake, activity, sleep, or recovery are misaligned — and no one explains why.
This free calculator helps you understand:
- How your body uses energy
- Why progress may be slow or stalled
- What changes actually matter for sustainable fat loss
No gimmicks. No crash diets. Just evidence-based guidance.
What This Calculator Does
In just a few minutes, you’ll receive a personalized metabolic and weight-loss summary, including:
- Estimated resting metabolism (BMR)
How many calories your body uses at rest - Estimated daily needs (TDEE)
Your maintenance calories based on activity - A sustainable calorie target for fat loss
Designed to support energy and muscle, not starvation - Personalized macronutrient targets
Protein, carbs, and fat — adjusted for goals, activity, and preferences - Weight-loss goal & percentage
With a realistic, evidence-based timeframe - Physical activity & strength recommendations
Focused on muscle preservation and metabolic health - Sleep & recovery guidance
Because sleep affects hunger, hormones, and results - Clear next steps
So you’re not left guessing what to do next
Why This Is Different From Other Calculators
Most online calculators:
- Focus only on calories
- Ignore muscle loss
- Over-promise speed
- Don’t explain plateaus
- Offer no medical context
This calculator was designed by a board-certified physician and emphasizes:
- Muscle preservation
- Metabolic efficiency
- Sustainability
- Real-world adherence
- Medical oversight when appropriate
It’s meant to educate, not pressure you.
Who This Is For
This calculator is especially helpful if you:
- Feel like you’re “doing everything right” but not losing weight
- Have hit a plateau after initial success
- Are over 35–40 and noticing slower results
- Are considering or already using GLP-1 medications
- Want clarity without extreme dieting
- Prefer evidence over trends
What You’ll Get After Completing It
You’ll see a clear summary of your results and receive guidance you can actually use.
Many people tell us:
If you choose, you’ll also have the option to:
- Save your results
- Receive additional educational insights
- Request a physician review of your plan
Physician-Led Care Matters
Text2MD Personalized Weight Loss Calculator was created by Dr. Miguel Antonatos, a board-certified internal medicine physician with over 15 years of experience treating complex medical metabolic conditions.
He is an active member of the American Obesity Association. His background in metabolic health, insulin resistance, and post-illness physiology ensures thoughtful, safe weight loss treatment — not rushed protocols.
🚨Important Disclaimer
This calculator provides educational estimates only.
It does not diagnose conditions or replace medical care.
Weight loss responses vary based on health history, medications, hormones, sleep, stress, and consistency.
Ready to See What’s Actually Going On?