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Unlock Your Fitness Potential: Mastering BMR, Calories, and Macros

We hope this post finds you thriving on your health and fitness journey. Here at MoMentum Body Wellness, we understand that achieving wellness goals is a personalized journey, and we're here to provide you with the tools you need for success.


Today, we're diving into the science of Basal Metabolic Rate (BMR) and how it plays a crucial role in determining your daily caloric needs. Whether you're aiming to maintain your current weight or embarking on a weight loss journey, understanding your BMR is the fundamental first step towards achieving your fitness goals.


What is BMR, and why does it matter?


Your BMR is the number of calories your body requires at rest to maintain essential physiological functions like breathing, circulation, and cell production. Knowing this baseline allows you to make informed decisions about your daily caloric intake, whether for weight maintenance or loss.


Calculating Your BMR: A Key to Your Success


Worried about complicated calculations? Fear not! Calculating your BMR is simpler than it sounds and provides a clear starting point for setting realistic and achievable caloric goals.


For Men: BMR = 66 + (6.2 x weight in lbs) + (12.7 x height in inches) - (6.8 x age)


For Women: BMR = 665 + (4.4 x weight in lbs) + (4.6 x height in inches) - (4.7 x age)


To determine your daily caloric needs, add an activity multiplier based on your lifestyle:

  • Sedentary (little to no exercise): BMR x 1.15
  • Mostly Sedentary (office work + 3-6 days of weightlifting): BMR x 1.35
  • Lightly Active + 3-6 days of weightlifting: BMR x 1.55
  • Highly Active + 3-6 days of weightlifting: BMR x 1.75


Fine-tuning for Your Goals


For those aiming for fat loss, subtract your body weight multiplied by your target weekly fat loss rate times 500 from your calorie intake. If muscle gain is the goal, add the appropriate percentage based on your training level.

  • Beginner: 2%
  • Novice: 1.5%
  • Intermediate: 1%
  • Advanced: 0.5%


Taking it a Step Further: Macros Made Simple


Once you've mastered your BMR, the next step is optimizing your nutrition with macronutrients (macros). Proteins, fats, and carbohydrates play crucial roles in achieving your fitness goals.

Use these formulas to calculate your macros:

  • Protein: 1.0-1.2g/lb of body weight (Cutting) | 0.7-1.0g/lb of body weight (Bulking or Maintaining)
  • Carbs: 0.5g/lb per day
  • Fat: 0.25g/lb per day


For example, if your goal is muscle gain and you're at an intermediate training level, you'd need around 180g of protein, 90g of carbs, and 45g of fat per day.


We hope this breakdown helps you gain better insight into the calories and macros needed to reach your fitness goals. Remember, your journey is unique, and we're here to support you every step of the way.

Stay fit and stay focused!