Basal Metabolic Rate is the energy your body uses at complete rest to keep you alive — breathing, circulation, temperature and cell repair.

Which BMR formula is most accurate?

Mifflin-St Jeor is generally considered the most reliable for most adults. Katch-McArdle can be better if you know your body-fat percentage accurately.

What is the difference between BMR and TDEE?

TDEE (total daily energy expenditure) is your BMR multiplied by an activity factor, so it includes the calories you burn moving and exercising.

How do I use BMR Calculator online for free?

Using BMR Calculator is simple: 1) Go to the BMR Calculator tool on MyToolsHub — free, no login required. 2) Paste or type your data into the input area. The tool works entirely in your browser. 3) Configure any available options to get the exact output you need. 4) Your output appears in real time. Copy it to clipboard or download the result. No registration or software installation is needed.

Is BMR Calculator free to use?

Yes, BMR Calculator is 100% free with no hidden costs, no subscription, and no sign-up required. All features are available to every user at no charge.

Is my data safe when using BMR Calculator?

Absolutely. BMR Calculator processes all data directly in your browser. Your files and text never leave your device or get sent to any server. Your privacy is fully protected.

What is the best bmr calculator online tool online?

MyToolsHub's BMR Calculator is one of the best free bmr calculator online tools available online. It requires no installation, works on all devices, and delivers instant results without any sign-up.

Can I use basal metabolic rate calculator without registration?

Yes. You can use BMR Calculator — and all 100+ tools on MyToolsHub — completely without creating an account. Just open the tool and start working immediately.

Do I need to install anything to use calories burned at rest?

No installation is required. BMR Calculator is a web-based tool that runs directly in your browser on any device — Windows, Mac, Linux, Android, or iOS.

BMR Calculator

Calculate your Basal Metabolic Rate (BMR) with the Mifflin-St Jeor and revised Harris-Benedict equations (plus Katch-McArdle if you know your body fat). Metric or imperial units, with daily calories for every activity level.