Track Your Health with BMI, BMR & Macros

In today’s health-conscious world, tracking your nutrition and physical health is easier than ever—if you have the right tools. Whether you’re working toward weight loss, muscle gain, or simply maintaining a healthy lifestyle, our Fitness Calculator gives you everything you need in one place.

Fitness & Nutrition Calculators




This easy-to-use tool combines three essential fitness metrics:

  • BMI Calculator
  • BMR Calculator
  • Macro Calculator

What Is a Fitness Calculator?

A Fitness Calculator is a digital tool that helps you assess key health and nutrition metrics based on personal inputs like height, weight, age, gender, and activity level. Instead of juggling multiple calculators and spreadsheets, our tool brings everything together:

  • BMI – to check your weight category
  • BMR – to know your daily calorie needs
  • Macros – to plan your daily grams of protein, carbs, and fat

📏 1. BMI Calculator – Check Your Body Weight Category

Your BMI (Body Mass Index) is a quick way to determine if your weight is within a healthy range for your height. It’s calculated using your height and weight and is widely used by health professionals around the world.

BMI Ranges:

  • Underweight: BMI less than 18.5
  • Normal weight: BMI 18.5–24.9
  • Overweight: BMI 25–29.9
  • Obese: BMI 30 and above

Why it matters: Knowing your BMI can help you identify if you’re at risk for weight-related health issues and take action accordingly.

🔥 2. BMR Calculator – Know Your Baseline Calorie Needs

Your BMR (Basal Metabolic Rate) is the number of calories your body needs to function at rest. It includes vital functions like breathing, circulation, and cell production—even when you’re not physically active.

Our calculator uses the Mifflin-St Jeor Equation, one of the most accurate formulas for calculating BMR. By entering your gender, age, weight, and height, you’ll get a personalized number that tells you:

  • How many calories you burn at rest
  • A baseline for setting weight loss, maintenance, or gain targets

Bonus: We also factor in your activity level to estimate TDEE (Total Daily Energy Expenditure) — the total number of calories you burn daily.

🍽️ 3. Macro Calculator – Split Calories into Protein, Carbs & Fat

Tracking calories is great—but what about where those calories come from? That’s where macronutrients (macros) come in.

Macronutrients are:

  • Protein – builds muscle and repairs tissue
  • Carbohydrates – your body’s main energy source
  • Fats – supports cell function and hormone production

Our Macro Calculator helps you divide your total daily calorie intake into the ideal percentage of protein, carbs, and fats based on your fitness goal:

Goal Protein Carbs Fats
Balanced Diet 30% 40% 30%
Low-Carb/Keto 40% 20% 40%
High-Protein Build 40% 30% 30%

The calculator converts these percentages into gram amounts, giving you exact numbers to aim for daily.

🎯 Why Use This All-in-One Fitness Calculator?

Instead of bouncing between different tools and apps, you get a full picture of your health metrics in one unified experience. Whether you’re a beginner or an experienced athlete, this tool provides:

  • ✅ Instant results based on scientific formulas
  • ✅ User-friendly, mobile-optimized design
  • ✅ Personalized results tailored to your body and goals
  • ✅ Clear macro breakdown for meal planning

🚀 Start Tracking Your Fitness Now

Our all-in-one Fitness Calculator is completely free to use and works right in your browser—no login required. It’s designed to help you take control of your health with the knowledge you need to make informed choices.

👉 Try the tool now at CaloriezCount.com
Your path to better health starts with one calculation.

📌 Final Thoughts

Fitness isn’t about guessing—it’s about knowing. With tools like a BMI, BMR, and Macro Calculator, you remove the guesswork from your nutrition and training. This Fitness Calculator gives you science-backed insights so you can reach your goals faster and smarter.

Ready to master your macros and optimize your calorie intake?
Use the Fitness Calculator today — only on Caloriez Count.

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