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BMR & Calorie Planner

Estimate your daily calorie needs, set goals, and convert them into macro targets.

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years
cm
kg

Lifestyle & Goals

Macro Distribution

📖 How to Use

Fill in your personal details, choose an activity level, and select a goal. Adjust macros to match your dietary style. The calculator updates instantly, giving you calorie targets, macro breakdowns, and actionable coaching tips.

🧮 Formula

Mifflin-St Jeor:
Male: BMR = (10 × weight kg) + (6.25 × height cm) − (5 × age) + 5
Female: BMR = (10 × weight kg) + (6.25 × height cm) − (5 × age) − 161

Harris-Benedict:
Male: BMR = 13.397×weight + 4.799×height − 5.677×age + 88.362
Female: BMR = 9.247×weight + 3.098×height − 4.330×age + 447.593

💡 Tips

  • Recalculate every 4–6 weeks as your weight or activity pattern changes.
  • Avoid extreme deficits or surpluses without medical supervision.
  • Pair your calorie plan with strength training and adequate protein to protect lean mass.
  • Listen to your energy levels—adjust macros if performance or recovery suffers.

🔗 References

  • Mifflin MD, St Jeor ST, et al. "A new predictive equation for resting energy expenditure in healthy individuals" (1990).
  • Roza AM, Shizgal HM. "The Harris-Benedict equation reevaluated: resting energy requirements and the body cell mass" (1984).
  • Academy of Nutrition and Dietetics guidelines on safe caloric deficits and macro distributions.