Free online utility tool

BMR Calculator

Calculate Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) maintenance calories.

How It Works

Enter your sex, age, height, and weight. The calculator applies the Mifflin-St Jeor formula to compute your Basal Metabolic Rate (BMR) and daily TDEE maintenance calories.

BMR Calculator (Basal Metabolic Rate)

Calculate baseline daily calories burned at complete rest using the Mifflin-St Jeor formula.

Biological Sex

Age (Years)30 Years

Weight (kg)70 kg

Height (cm)175 cm

Basal Metabolic Rate (BMR)

1,649 kcal/day

Daily Calorie Maintenance (TDEE)

Sedentary (Little/no exercise)1979 kcal

Moderate (3-5 days/wk)2556 kcal

Heavy Exercise (6-7 days/wk)2844 kcal

How to use the BMR Calculator

Calculate baseline daily calories burned at rest using the Mifflin-St Jeor formula. Yuitility keeps the workflow fast and focused, so you can complete the job without creating an account.

1Add the text, values, or data you want to work with.
2Adjust the available settings and review the live result.
3Copy, export, or save the finished result when you are ready.

BMR Calculator FAQ

Frequently asked questions about calculation formulas, privacy, and usage.

What does the BMR Calculator do?

The BMR Calculator processes your inputs directly in your web browser to perform fast calculations, transformations, or data formatting without external tools.

Is the BMR Calculator free to use?

Yes. Yuitility provides the BMR Calculator 100% free with no account creation, no usage caps, and no subscription fees.

Does the BMR Calculator upload my files or personal data?

No. All file processing, image conversion, and data math execute locally on your device. Your data never leaves your browser window.

Can I use the BMR Calculator offline?

Yes. Once the page is loaded, the client-side JavaScript execution code remains active in memory, allowing offline use without an active internet connection.