VitalMetricHubTDEE calculator
Total daily energy expenditure multiplies BMR by an activity factor. Choose the level that best matches a typical week—not your best week.
Estimated TDEE
2124
kcal / day
TDEE across activity levels (same person)
Using your entered age, height, weight, and sex, this shows TDEE at each standard activity factor. Highlighted bar matches your selected activity. Educational illustration only — not a diagnosis or personal target.
Activity factors are commonly used multipliers paired with Mifflin–St Jeor BMR.
Go deeper
Evidence-informed guides tied to this calculator — still educational, not personal medical advice.
How this calculator works
Open any section below for the underlying method, how to read your results, practical tips, and limits. This site is for education only—not medical advice or a personal care plan.
Formula and method
TDEE ≈ BMR × an activity factor. Activity factors group jobs and exercise into broad buckets (sedentary through very active).
The breakdown chart on this page splits output into resting versus “activity and thermic effect” for teaching—it is a simplified visualization, not a lab measurement.
How to read your result
TDEE is an estimate of average daily burn if your activity level description is accurate.
Most people underestimate sedentary time and overestimate workouts; when in doubt, choose the lower activity tier and adjust after a few weeks of real-world tracking with professional guidance.
Practical tips
Base your activity choice on the last 2–4 typical weeks, not vacation weeks or peak training blocks.
If weight trend disagrees with the estimate, the activity factor—not the equation—is usually the first place to revisit.
Illness, injury, sleep debt, and stress can change expenditure without changing step counts.
Limitations
Activity multipliers are population averages. They do not capture genetics, medications, or metabolic adaptation.
Do not use TDEE alone to prescribe diets for medical conditions; involve your care team.
Sources, formulas & further reading
Based on: Mifflin–St Jeor BMR × physical activity factor (ACE/ACSM-style multipliers).
For additional clinical context, see independent references from the publishers below (WHO, CDC, PubMed, Medscape, ACE, ACOG, NIH, NCBI, USDA — as applicable).
- PubMed — Mifflin–St Jeor (1990) — PubMed
- ACE — TDEE and energy balance — ACE
Medical disclaimer
This tool is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult your doctor or qualified healthcare professional before making any health-related decisions. Results are estimates only.
Last medically reviewed: March 2026
Content last updated: March 30, 2026