Health & Fitness
Calorie Needs (TDEE)
Estimate daily calorie needs from BMR and activity level.
Preparing your result…
What this calculator does
Calculates Calorie Needs (TDEE) using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
TDEE = resting energy (Mifflin–St Jeor) × physical activity level (PAL); FAO/WHO PAL bands: sedentary 1.40–1.69, active 1.70–1.99, vigorous 2.00–2.40
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • Correction required. Adult total daily energy expenditure estimate=BMR×physical activity level (PAL). PAL is total 24-hour energy expenditure divided by 24-hour BMR; both energy quantities must use the same unit.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • Provide a documented numeric PAL for each activity choice; vague activity labels do not validate factors. Avoid adding exercise/food thermogenesis again if included in PAL. Model scope is healthy weight-stable adults; growth, pregnancy and lactation require separate energy components.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | Weight (kg) | Height (cm) | Age (years) | Estimated daily energy use |
|---|---|---|---|---|
| Worked example | 70 | 170 | 35 | 2,468.375 kcal/day |
| Half the amounts | 35 | 120 | 19 | 1,565.5 kcal/day |
| Double the amounts | 140 | 220 | 70 | 3,766.5 kcal/day |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
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