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Height-Adjusted BMR Calculator

Height is one input in the Mifflin–St Jeor resting-energy equation. At the same weight, age, and sex term, a taller height raises the equation's estimate—but body composition still matters.

Evidence reviewed July 15, 2026 | Educational information, not medical advice

Entity → attribute → evidence-based value

Which metabolic relationships define these estimates?

These evidence-led relationships connect each metabolic entity with a specific attribute and measurable value, while explaining whether that value is a direct measurement, a population estimate, or a historical approximation so the relationship remains useful without overstating what the underlying research can prove.

Mifflin–St Jeor Equation → Predictive Accuracy in Clinical Use

What is Mifflin–St Jeor Equation's predictive accuracy in clinical use?

The Mifflin–St Jeor equation showed the strongest predictive accuracy among the commonly tested formulas in a systematic review, placing more estimates for non-obese and obese adults within ±10% of measured resting metabolic rate, although that accuracy threshold does not guarantee an error below 10% for every individual.

Mifflin–St Jeor Equation → Predictive Accuracy in Clinical Use → the most reliable equation in a systematic review of the commonly tested formulas

Evidence: Frankenfield et al., systematic review

Lean Body Mass (LBM) → Metabolic Activity

What is Lean Body Mass (LBM)'s metabolic activity?

Lean body mass has no single metabolic activity value because it combines tissues with very different resting demands: skeletal muscle uses about 6 kilocalories per pound per day and adipose tissue about 2, while the liver, brain, heart, and kidneys expend substantially more energy per pound.

Lean Body Mass (LBM) → Metabolic Activity → not one fixed calories-per-pound value because lean mass contains tissues with very different metabolic rates

Evidence: The Anatomy of Resting Energy Expenditure

Next, calculate your total daily calorie-to-pounds deficit and connect BMR with activity, TDEE, and the intended rate of change.

What should you remember?

The most important points connect this page's main entity with the relevant energy-balance mechanisms and practical decisions, while separating population estimates from individual measurements, identifying important limitations, and avoiding conclusions or individualized prescriptions that the cited evidence cannot reasonably support for every reader.

  • Height is one predictor, not the whole metabolism.
  • BMR excludes activity and digestion.
  • Measured trends are more personal than a population equation.

Interactive estimate

What is your height-adjusted resting energy estimate?

This calculator estimates adult resting energy expenditure with the Mifflin–St Jeor equation, showing how height contributes alongside weight, age, and the equation's sex-specific constant; it answers the question with a population estimate rather than a measured metabolic rate, diagnosis, maintenance target, or individualized intake prescription.

For adults. This uses the original sex-specific constants in the Mifflin–St Jeor equation and is not a diagnosis or intake target.

Dynamic result

Enter your values and calculate to see an evidence-based estimate.

Formula and assumptions

RMR = 10 × weight kg + 6.25 × height cm − 5 × age + sex-specific constant.

How does height affect the Mifflin–St Jeor equation?

Height raises the Mifflin–St Jeor resting-energy estimate by 6.25 kilocalories per centimetre when weight, age, and the equation's sex-specific term remain unchanged, but the coefficient represents a population relationship and cannot directly measure an individual's organ mass, lean body mass, or metabolic rate.

The original Mifflin–St Jeor study derived equations from measured resting energy expenditure in 498 adults. The equation uses weight, height, age, and a sex-specific constant [1]. Height contributes 6.25 kcal/day for each centimetre in the formula, with other inputs held constant.

That coefficient is a statistical contribution—not proof that height alone causes a precise calorie difference. Taller people often differ in body surface area, organ size, skeletal mass, and lean tissue, all of which complicate simple comparisons [2].

Is BMR the same as TDEE?

No, BMR estimates resting energy needs under controlled conditions, whereas TDEE adds the thermic effect of food, exercise, non-exercise activity, and other daily movement, so a BMR result is neither a complete maintenance-calorie estimate nor an individualized calorie-deficit prescription for weight loss.

BMR or resting energy is the energy required before adding normal movement, exercise, and the thermic effect of food. TDEE adds those components for an energy balance estimate. Neither value directly measures homeostasis or lipolysis, and both should be calibrated against observed weight trends and changing body composition.

Which sources and methods support this guide?

The guide uses primary studies, systematic reviews, government resources, or peer-reviewed journal articles to support its formulas and EAV claims, with each numbered citation linking to the underlying evidence so readers can inspect the population, method, limitations, and meaning of the reported value.

  1. A new predictive equation for resting energy expenditure in healthy individualsPubMed
  2. The Anatomy of Resting Energy Expenditure: Body Composition MechanismsPMC

What should you explore next?

Continue with the related calculator or guide that explains the next variable in the same energy-balance pathway, using the descriptive link text to identify the exact scientific relationship, calculation, and practical limitation covered on the destination page before you leave the current topic.

Variables Thermic Effect of Food Calculator Variables Non-Exercise Activity (NEAT) Calorie Calculator Actionable application What Is the Best Macro Ratio for Weight Loss?
Return to the calorie-to-pounds calculator

What do readers ask about this topic?

These concise answers address the most common interpretation and application questions for this topic, while preserving the distinction between an educational population estimate and individualized medical, nutritional, or metabolic advice, and directing readers back to the page's stated evidence, assumptions, and limitations when necessary.

Not always for every individual. In the Mifflin–St Jeor equation, greater height increases the estimate when weight, age, and sex term are held constant, but body composition can change the real result.
BMR is not a daily intake prescription. It excludes daily activity and should not replace individualized guidance from a qualified professional.