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Free BMR Calculator

Mifflin vs Harris-Benedict with TDEE at all 5 activity levels

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Frequently Asked Questions

What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest to maintain vital functions like breathing, circulation, and cell production.

Which BMR formula is most accurate?

The Mifflin-St Jeor equation is considered the most accurate for most adults. Harris-Benedict tends to overestimate by 5-15%. Katch-McArdle is best if you know your body fat percentage.

Is this calculator free to use?

Yes — 100% free with no registration, no login, and no hidden fees. All Calculators Point calculators are permanently free.

How accurate are the results?

Our calculators use industry-standard formulas verified against professional tools. Results are for informational purposes — always verify important financial or health decisions with a qualified professional.

Can I share my calculation?

Yes! Click the Share button on any result to copy a shareable link with your exact inputs pre-filled.

Does Calculators Point store my data?

No. All calculations happen locally in your browser. We never transmit your inputs to any server.

Can I use this on mobile?

Absolutely. Calculators Point is mobile-first — sliders, inputs and charts are all optimized for touch screens.

About the BMR Calculator

Mifflin vs Harris-Benedict with TDEE at all 5 activity levels. The BMR Calculator is designed to help fitness enthusiasts, healthcare professionals, and individuals monitoring their health with health monitoring, fitness tracking, and wellness management.

Instead of complex manual computation, you can use this tool to get instant, accurate results. Simply enter your values to see a step-by-step breakdown of how the answer was reached.

This utility works directly in your browser without any sign-ups or downloads.

Formula Used

Mifflin-St Jeor:

Men: BMR = 10×weight(kg) + 6.25×height(cm) - 5×age - 5

Women: BMR = 10×weight(kg) + 6.25×height(cm) - 5×age - 161

How to Use the BMR Calculator

1Enter your values into the BMR Calculator input fields above.
2Review the input labels to ensure you are using the correct units.
3Click the "Calculate" button to get your instant result.
4Use the step-by-step breakdown to understand how the result was calculated.
5Export or copy your result to use in reports or share with others.

Example Use Cases

📌 Using the BMR Calculator for a real-world project

💡 Enter your specific values above to see your personalized result instantly.

Tips & Best Practices

Mifflin-St Jeor is considered the most clinically accurate BMR formula for most adults.
BMR accounts for 60-75% of total daily calories — your body burns most energy just staying alive.
Double-check your input units before calculating — using the wrong unit is the most common source of errors.
Bookmark this BMR Calculator for quick access next time you need it.
Use the share button to send your results to a colleague or save them for later reference.

More Health & Fitness

View all Health & Fitness Calculators →

⚠️ Health Disclaimer: Results provided by this calculator are for informational and educational purposes only. They do not constitute medical advice. Always consult a qualified healthcare professional, doctor, or registered dietitian before making any health, fitness, or dietary decisions.

Frequently Asked Questions

What is BMR?

Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest to maintain vital functions like breathing, circulation, and cell production.

Which BMR formula is most accurate?

The Mifflin-St Jeor equation is considered the most accurate for most adults. Harris-Benedict tends to overestimate by 5-15%. Katch-McArdle is best if you know your body fat percentage.

Is this calculator free to use?

Yes — 100% free with no registration, no login, and no hidden fees. All Calculators Point calculators are permanently free.

How accurate are the results?

Can I share my calculation?

Yes! Click the Share button on any result to copy a shareable link with your exact inputs pre-filled.

Does Calculators Point store my data?

No. All calculations happen locally in your browser. We never transmit your inputs to any server.

Can I use this on mobile?

Absolutely. Calculators Point is mobile-first — sliders, inputs and charts are all optimized for touch screens.

About the BMR Calculator

Instead of complex manual computation, you can use this tool to get instant, accurate results. Simply enter your values to see a step-by-step breakdown of how the answer was reached.

This utility works directly in your browser without any sign-ups or downloads.

How to Use the BMR Calculator

1Enter your values into the BMR Calculator input fields above.

2Review the input labels to ensure you are using the correct units.

3Click the "Calculate" button to get your instant result.

4Use the step-by-step breakdown to understand how the result was calculated.

5Export or copy your result to use in reports or share with others.

Tips & Best Practices

Mifflin-St Jeor is considered the most clinically accurate BMR formula for most adults.

BMR accounts for 60-75% of total daily calories — your body burns most energy just staying alive.

Double-check your input units before calculating — using the wrong unit is the most common source of errors.

Bookmark this BMR Calculator for quick access next time you need it.

Use the share button to send your results to a colleague or save them for later reference.

Free BMR Calculator

Frequently Asked Questions

About the BMR Calculator

Formula Used

How to Use the BMR Calculator

Example Use Cases

Tips & Best Practices

More Health & Fitness

Free BMR Calculator

BMR & TDEE Calculator

Frequently Asked Questions

About the BMR Calculator

Formula Used

How to Use the BMR Calculator

Example Use Cases

Tips & Best Practices

More Health & Fitness

BMR & TDEE Calculator