BMR & TDEE Calculator illustration

BMR & TDEE Calculator

Estimates your basal metabolic rate with the Mifflin-St Jeor, Harris-Benedict or Katch-McArdle formula, then scales it by activity level to a total daily energy expenditure with calorie targets for losing or gaining weight.

Notes

  • Mifflin-St Jeor: BMR = 10w + 6.25h − 5a + s, with s = +5 for men and −161 for women.
  • Formulas estimate the population average; individual metabolisms vary by roughly ±10%. Track your weight for a few weeks and adjust.
  • This is an educational estimate, not medical advice; consult a professional for decisions about your health.

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