Ori ToolsHow to use
- Enter weight, height and age.
- Choose the sex used in the formula.
- Press Calculate.
When to use it
- Planning a diet
- Finding a starting point for TDEE
- Comparing estimates over time
The formula
Mifflin–St Jeor: 10 × weight (kg) + 6.25 × height (cm) − 5 × age, plus 5 for men or minus 161 for women. It is one of the more accurate equations for adults, but real metabolism can differ by 10% or more.
Frequently asked questions
What is the difference between BMR and TDEE?
BMR is energy at rest; TDEE adds daily activity.
Should I eat below my BMR?
Talk to a professional before eating that little.
Does muscle change BMR?
Yes, more lean mass usually means a higher BMR.