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HomeCalculatehealth/calorie-calculator

Calorie Calculator (TDEE)

Estimate daily calorie needs: Mifflin-St Jeor BMR multiplied by an activity factor.

Health tools disclaimer

Results are educational estimates based on the formulas and inputs shown. They are not medical advice, diagnosis, or treatment. For clinical decisions, medication dosing, or emergency symptoms, consult a licensed healthcare professional.

Related calculators

BMI CalculatorBMR CalculatorCalorie CalculatorHealth calculatorsLifestyle ToolsSports Tools

Verification & transparency

Automated checks: engine-validated output
Last updated:2026-08-07
|
Sources:WHO 2024 · CDC Growth Charts · Mifflin-St Jeor 1990 · IOM 2009 Weight Gain
|
Reference:tdee = (10 * weightKg + 6.25 * heightCm - 5 * ageYears + sexConstant) * activityFactor
|Rounding & precision policy
Inputs Reference
  • Weight (kg) — range: 20–300
  • Height (cm) — range: 50–250
  • Age (years) — range: 1–120
  • Sex constant — range: -161–5
  • Activity factor — range: 1.2–1.9
Formula

tdee = (10 * weightKg + 6.25 * heightCm - 5 * ageYears + sexConstant) * activityFactor

On This Page
  • Primary output (Daily Calories (TDEE))
  • calculatorInputsTitle
  • reverseSolveLabel
ExpertToolkit

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Method and AccuracyStandards: reviewed units and formulasMethodologyEditorially maintainedStandards reviewed regularly

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Content reviewed by Anoop Kumar

Imperial

Body metrics

Daily Calories (TDEE)2 507.13cal/day

Additional results

BMR (Mifflin-St Jeor)1 617.50cal/day
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Unit conversions follow SI and common measurement standards. We use careful numeric handling to reduce rounding surprises.

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Privacy policy
  • calculatorFormulaTitle
  • Computation graph
  • Sensitivity analysis
  • Range table
  • Calorie Calculator input driver comparison
  • Common Questions
    • When is this health estimation context enough?
    • What should I record with the result?
    • When should I use a specialized modifier?
    Related Tools
    • BMI Calculatorgraph
    • BMR Calculatorgraph

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    © 2026 ExpertToolkit. All rights reserved.

    Release 2.5Market: United States

    Primary output (Daily Calories (TDEE))

    Daily Calories (TDEE)

    2507.13

    Computed from default inputs using graph `synth-calorie-calculator`.

    Calculator inputs

    Weight
    70 kg
    Range: 20 - 300

    Mathematical model

    tdee = (10 * weightKg + 6.25 * heightCm - 5 * ageYears + sexConstant) * activityFactor

    Main equation used by this calculator. Numeric steps follow the page's precision and rounding rules.

    Term Glossary

    Weight
    Weight is a declared input for Calorie Calculator, measured in kg. Check this value and its unit before reusing the result. Expected values usually stay between 20 and 300 kg.
    Sources & Standards
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    • About Us
    Height
    170 cm
    Range: 50 - 250
    Age
    30 years
    Range: 1 - 120
    Sex constant
    5
    Range: -161 - 5
    Activity factor
    1.55
    Range: 1.2 - 1.9

    Reverse Solve

    Solve for Weight

    Weight: 86.1752 for Daily Calories (TDEE) 2.758e+3

    Formula and method

    Mifflin-St Jeor basal metabolic rate scaled by a standard activity multiplier.

    tdee=(10⋅weightKg+6.25⋅heightCm−5⋅ageYears+sexConstant)⋅activityFactor tdee=\left(10\cdot weightKg+6.25\cdot heightCm-5\cdot ageYears+ sexConstant\right)\cdot activityFactortdee=(10⋅weightKg+6.25⋅heightCm−5⋅ageYears+sexConstant)⋅activityFactor

    Computation graph

    1. bmr10 * weightKg + 6.25 * heightCm - 5 * ageYears + sexConstant
    2. tdee(10 * weightKg + 6.25 * heightCm - 5 * ageYears + sexConstant) * activityFactor

    Sensitivity analysis

    Sensitivity matrix showing how the result changes as the sampled input moves through a broader range.

    Sensitivity matrix showing how Daily Calories (TDEE) reacts as Weight moves through a broader sampled range.

    WeightDaily Calories (TDEE)
    201.7321e+3
    51.1111112.2143e+3
    82.2222222.6966e+3
    113.3333333.1788e+3
    144.4444443.6610e+3
    175.5555564.1432e+3

    Showing 6 of 10 rows for Weight.

    Range table

    Structured output table across the sampled range so users can compare values without recalculating each point manually.

    Reference table for Daily Calories (TDEE) across the sampled input range.

    WeightDaily Calories (TDEE)
    201.7321e+3
    51.1111112.2143e+3
    82.2222222.6966e+3
    113.3333333.1788e+3
    144.4444443.6610e+3
    175.5555564.1432e+3

    Showing 6 of 10 rows for Weight.

    Daily Calories (TDEE) decision comparison

    Daily Calories (TDEE) decision comparison

    itemvaluenote
    Stress low1732.13Weight: 20
    Downside2398.63Weight: 63
    Base case2507.13Weight: 70
    Upside2615.63Weight: 77
    Stress high6072.13Weight: 300

    Result chart

    Visual Analysis1 series8 points

    Expanded chart built from the same sensitivity run as the table, so users can read the trend and verify the numbers in one place.

    Trend
    Upward
    Min
    1.7K
    Max
    5.1K
    Insight
    Daily Calories (TDEE) shows an upward pattern, with a visible peak around 237.7778 at 5.1K.
    1.7K2.6K3.4K4.3K5.1K2051.111182.2222113.3333144.4444175.5556206.6667237.7778

    Visual response curve for Daily Calories (TDEE).

    Scenario comparison

    Scenario comparison block for checking how different input profiles change the outcome.

    scenarioWeightDaily Calories (TDEE)
    Stress low201.7321e+3
    Downside632.3986e+3
    Base case702.5071e+3
    Upside772.6156e+3
    Stress high3006.0721e+3
    Mid-range check1603.9021e+3

    Output breakdown

    1. Daily Calories (TDEE)tdee= 2507.13
    2. BMR (Mifflin-St Jeor)bmr= 1617.5

    How to use this calculator

    Health tools disclaimer: Educational estimates only, not medical advice, diagnosis, or treatment. For clinical decisions, dosing, or emergencies, follow guidance from US Department of Health & Human Services and a licensed professional in your jurisdiction.

    Estimate total daily energy expenditure (TDEE): Mifflin-St Jeor BMR × activity factor.

    Calorie Calculator turns Weight, Height, Age, Sex constant, and Activity factor into Daily Calories (TDEE) and BMR (Mifflin-St Jeor). Confirm the units and assumptions match your situation before relying on the result.

    Calorie Calculator produces a screening estimate, not a diagnosis. Measurements such as Weight, Height, Age, Sex constant, and Activity factor translate into Daily Calories (TDEE) and BMR (Mifflin-St Jeor), which is useful for tracking a trend over time or preparing questions for an appointment — not for deciding treatment, dosing, or urgency on its own.

    Estimate quality tracks measurement quality: enter current values, use the units each input asks for, and describe the individual case rather than a population average. If a result would change medication use, urgent care timing, or a treatment decision, stop at the estimate and confirm the next step with a licensed professional.

    Overwhelm from technical jargon

    Start with the basic inputs only — advanced options can be explored once you understand the fundamentals. Important: Don't be discouraged if your results seem unfavorable — these tools help you plan, not judge.

    Enter your values, then check the formula, scenarios, and FAQ to confirm the assumptions fit your case. For medical, financial, legal, or safety-critical decisions, treat the output as an estimate and verify it against the relevant professional standard.

    Sources & Standards

    1. World Health Organization. "Body mass index - BMI." WHO Regional Office for Europe, 2024.BMI classification thresholds: underweight <18.5, normal 18.5-24.9, overweight 25-29.9, obese ≥30
    2. Centers for Disease Control and Prevention. "About Child & Teen BMI." CDC, 2024.Pediatric BMI uses age-sex-specific percentiles, not adult thresholds
    3. Mifflin MD, St Jeor ST, et al. "A new predictive equation for resting energy expenditure in healthy individuals." Am J Clin Nutr. 1990;51(2):241-247.BMR formula: 10×weight(kg) + 6.25×height(cm) - 5×age - 161 (female) or +5 (male)
    4. Institute of Medicine. "Weight Gain During Pregnancy: Reexamining the Guidelines." National Academies Press, 2009.Recommended pregnancy weight gain by pre-pregnancy BMI category

    Verify this result

    This answer is computed by CalculationEngine (v1.0.0). The same inputs always produce the same figure and the same fingerprint below, so you can reproduce and cite it.

    Standards

    • WHO 2024 — BMI classification thresholds: underweight <18.5, normal 18.5-24.9, overweight 25-29.9, ob
    • CDC Growth Charts — Pediatric BMI uses age-sex-specific percentiles, not adult thresholds
    • Mifflin-St Jeor 1990 — BMR formula: 10×weight(kg) + 6.25×height(cm) - 5×age - 161 (female) or +5 (male)

    Assumptions

    • Scenariodefault inputs
    • Methodformula-graph evaluation
    • Formulatdee = (10 * weightKg + 6.25 * heightCm - 5 * ageYears + sexConstant) * activityFactor

    Inputs & outputs

    • in · weightKg70
    • in · heightCm170
    • in · ageYears30
    • in · sexConstant5
    • in · activityFactor1.55
    • out · Daily Calories (TDEE)2507.125
    • out · BMR (Mifflin-St Jeor)1617.5

    Computation fingerprint (SHA-256)

    beda72edc615b133cf6287fc0b97768fcd6a4880bc5f3faa103c470e4a13cd84

    Related Tools

    BMI CalculatorgraphBMR Calculatorgraph

    Calorie Calculator context FAQ

    When is this health estimation context enough?
    Use it when the result only depends on age, sex, height and no local rule changes the interpretation.
    What should I record with the result?
    Record the input values, reference population, measurement unit, activity estimate, output unit, and rounding rule used in the calculation.
    When should I use a specialized modifier?
    Use a specialized modifier when measurement units, reference range, age/sex context, and non-diagnostic limits materially changes how the same result should be explained.

    Calculator operating signals

    Calculator operating signals

    Beyond the main answer: how many inputs shape the result, and how many sensitivity samples and scenarios you can explore before relying on it.

    itemvaluenote
    Inputs5-
    Outputs2-
    Sensitivity samples10-
    Scenarios6-
    Height
    Height is a declared input for Calorie Calculator, measured in cm. Check this value and its unit before reusing the result. Expected values usually stay between 50 and 250 cm.
    Age
    Age is a declared input for Calorie Calculator, measured in years. Check this value and its unit before reusing the result. Expected values usually stay between 1 and 120 years.
    Sex constant
    Use 5 for male and -161 for female in Mifflin-St Jeor.
    Activity factor
    1.2 sedentary · 1.375 light · 1.55 moderate · 1.725 very active · 1.9 extra active.
    Health Calculators
    • BMI Calculator
    • BMR Calculator
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    • Ideal Weight Calculator
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    Method & sources

    Each calculator shows its formula and sources on the page.

    X-axis: WeightY-axis: Daily Calories (TDEE)
    Reference Tables
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