Skip to content
Vekbox logoVekbox Tools

BMI / BMR / TDEE Calculator

Options

Mifflin works well for most people.

BMI / BMR / TDEE Calculator

Estimate your body mass index (BMI), basal metabolic rate (BMR), and total daily energy expenditure (TDEE). Choose units, a BMR formula, and an activity level to get maintenance and goal calorie targets.

Formulas

  • Mifflin–St Jeor: Uses sex, age, height, and weight. Good general-purpose estimate.
  • Katch–McArdle: Uses lean body mass from body fat %. Often better for trained individuals.

Notes

  • These are estimates for planning and comparison, not medical advice.
  • BMI classification follows standard WHO ranges.
  • TDEE is BMR multiplied by an activity factor.
Related Tools
About this collection

Each page is built around one practical task. Enter what you need, review the result, and use the actions provided by the tool.

What to expect

  • Inputs and results kept together
  • Layouts that adapt to smaller screens
  • Direct links for returning to a tool
  • No account needed for the listed utilities

Need something else? Request a tool.