Slym Wellness BMR Calculator
Your Basal Metabolic Rate (BMR) estimates how many calories your body burns at rest. Choose a formula, enter your details, and see your daily baseline. Optionally preview estimated TDEE by adding an activity level.
Basal Metabolic Rate
Formula Used
Estimated TDEE Preview
Why Understanding Your Basal Metabolic Rate Matters at Slym Wellness Clinic
At Slym Wellness, we take a whole-body approach that turns numbers into a plan. Understanding your BMR helps our providers design programs that support:
Healthy weight management and nutrition targets
Hormone balance and energy stability
Preservation of lean mass during fat loss
Metabolic function and recovery
Our goal is not extreme restriction, it is precision and sustainability through nutrition, movement, and clinical support.
Understand Your BMR
IMPORTANT DISCLAIMER: This calculator is for educational purposes only and does not determine eligibility for medical treatment. A licensed provider must review your full health history before making personalized recommendations.
Basal Metabolic Rate (BMR) estimates how many calories your body burns at complete rest. It reflects the energy needed for essential functions like breathing, circulation, and cellular repair. Knowing your BMR helps you set realistic calorie targets and understand the baseline behind your TDEE.
Enter your age, height, weight, and sex, then choose a formula:
Mifflin–St Jeor (recommended if you do not know body-fat %)
Katch–McArdle (uses body-fat % to estimate based on lean mass)
You will see:
Your BMR in calories per day
The formula used
An optional TDEE preview if you select an activity level
For full maintenance calories, use our TDEE Calculator.
Put your BMR to work:
Pair BMR with your activity level to estimate TDEE for maintenance.
For fat loss, consider a moderate deficit alongside adequate protein and resistance training.
Re-evaluate when your weight, training, or medications change.
If you know body-fat %, compare Mifflin–St Jeor with Katch–McArdle for a lean-mass-focused estimate.
BMR is a starting point, your Slym plan customizes what happens next.
Take Action with Slym Wellness Clinic
Your metabolism is unique. At Slym Wellness, we transform BMR insights into a personalized plan across nutrition, hormones, GLP-1 support, and strength training, so you can progress with confidence.
Frequently Asked Questions (FAQ)
A: Your Basal Metabolic Rate (BMR) shows how many calories your body burns at rest — essentially the energy your body needs to function even if you stayed in bed all day. It helps our team understand your baseline metabolism, giving insight into how your body uses energy for essential functions like breathing, hormone regulation, and cell repair.
At Slym Wellness Clinic, we use BMR as a foundation for tailoring nutrition, exercise, and hormone optimization plans — helping you improve metabolic efficiency rather than just reduce calories.
A: BMR is one of several key metrics our providers use to personalize care. It helps us estimate your Total Daily Energy Expenditure (TDEE), calculate safe calorie targets, and design nutrition plans that protect lean muscle during weight loss or body recomposition.
Your BMR results are interpreted in combination with your lab work, hormone levels, medication, and body composition data, allowing our providers to take a truly individualized approach.
A: Yes! Our on-staff Registered Dietitian Nutritionist, Julia Leone, RDN, works closely with patients to translate these numbers into simple, real-world habits. Julia provides science-backed, sustainable nutrition guidance that supports your medical plan — whether that means optimizing your protein intake, balancing macros, or adjusting calories while on GLP-1 therapy.
Her nutrition programs are available to both patients and non-patients, offering meal planning, lifestyle support, and one-on-one coaching for improved metabolic health.
A: Think of BMR as your metabolic starting point. Once your BMR is known, we calculate your TDEE (total calories burned per day) and then adjust up or down depending on your goal:
For fat loss, we create a mild deficit while preserving lean mass with proper nutrition and strength training.
For maintenance or recomposition, we align calories and protein to support muscle retention and recovery.
For muscle gain, we design a modest surplus with targeted macronutrients to encourage growth without excessive fat gain.
Our providers and dietician work together to ensure your plan stays safe, efficient, and sustainable.
A: GLP-1 medications (like semaglutide or tirzepatide) can impact your metabolism as weight and appetite change. While your BMR may decrease slightly as body weight drops, our focus is on preserving lean mass through adequate protein, hydration, and strength training — all supported by your Slym Wellness team.
We monitor your progress through data, lab results, and ongoing communication with your provider and dietician to make adjustments as needed.
A: We recommend recalculating every 4–8 weeks, or whenever you notice significant changes in your weight, medications, or activity level. Regular tracking helps us ensure your plan remains aligned with your current metabolic rate, especially if you’re undergoing major changes like starting hormone therapy or GLP-1 treatment.
A: You can book a consultation directly with Julia Leone, RDN, through the Slym Wellness portal. Sessions are available both in-clinic and virtually for convenience.
Important Medical Disclaimer
This BMR Calculator is for educational use only. It provides estimates based on common formulas and should not replace professional medical advice. Always consult your Slym Wellness provider before changing your diet, exercise, or medications. This tool does not establish a provider-patient relationship.