Calorie / TDEE Calculator
Estimate TDEE and daily maintenance calories from BMR and activity level (Mifflin–St Jeor style). Free MyCalcsWorld health planner — not medical advice.
Results
TDEE (maintenance)
- BMR
- 1,649 kcal/day
- Mild cut (−10%)
- 2,300 kcal/day
- Mild bulk (+10%)
- 2,811 kcal/day
You might also need
Educational estimates · not financial advice · free, no signup
Formula / how it works
TDEE ≈ BMR × activity factor (sedentary ≈ 1.2 through very active ≈ 1.9, depending on the scale labeled on the form). Health formulas use widely published educational equations (e.g. BMI, Mifflin–St Jeor BMR, Navy body-fat, macro splits). They are population averages — not clinical measurements — and never replace medical advice, lab work, or a licensed clinician’s judgment. For the Calorie / TDEE Calculator, the labeled fields (Weight (kg), Height (cm), Age (years), Sex) drive the live result panel.
Read the guide: Calories, TDEE and Macros: The Basics (With Caveats)
Detailed guide
What it is, how to use it, how to read the numbers, common mistakes, a worked example, formulas, and FAQs.
What this calculator is
Fitness numbers are starting points, not diagnoses. The Calorie / TDEE Calculator on MyCalcsWorld uses published educational formulas so you can plan goals — then confirm with a clinician when it matters. What it does: Total Daily Energy Expenditure from BMR and activity level. Typical inputs: Weight (kg), Height (cm), Age (years), Sex, Activity level. Demo defaults (weight 70 kg, height 175 cm, age 30 years, sex male, activity level moderate) currently resolve to TDEE (maintenance) 2,556 kcal/day in the live panel — change any field to explore sensitivity. Who it helps: people setting fitness goals, coaches doing quick estimates, and anyone curious about BMI, calories, or training numbers — not a clinic visit.
When to use / who it helps
- Ballparking maintenance calories before a cut or lean bulk.
- Seeing how activity level changes estimated burn.
- Pairing with macros once you pick a calorie target.
- Use the Calorie / TDEE Calculator for educational goal-setting and coach-style ballparks — not diagnosis.
- Re-run with honest activity or measurement inputs to see a planning range, not a single magic number.
How to use
Steps
- Enter sex, age, height, and weight as labeled.
- Choose the activity level that best matches your week.
- Read estimated TDEE (kcal/day).
- Re-run with a lower activity level for a conservative plan.
- Open the Calorie / TDEE Calculator on MyCalcsWorld and skim the labeled fields before you type.
- Set Weight (kg) — demo default is 70 kg.
How to interpret results
- TDEE is a planning estimate — weigh trends over weeks matter more than one day’s math.
- Activity factors are coarse buckets, not GPS-tracked burn.
- Not medical advice.
- Each result is driven only by the labeled inputs (Weight (kg), Height (cm), Age (years), Sex); anything not on the form (fees, holidays, clinical adjustments) is outside this estimate.
- Category labels (BMI bands, calorie targets) are population heuristics, not diagnoses.
Common mistakes & gotchas
- Picking an optimistic activity level you do not actually sustain.
- Unit mix-ups on height/weight.
- Treating TDEE as a fixed entitlement rather than an estimate that drifts with weight and NEAT.
- Ignoring medical conditions that change energy needs.
- Mixing cm/in or kg/lb on fields: Weight (kg), Height (cm), Age (years), Sex, Activity level — unit mix-ups swing BMI and calorie outputs hard.
Worked example
Worked example — BMR ~1,340 × 1.55 active
- Suppose BMR ≈ 1,340 kcal/day from the BMR tool.
- Moderate activity factor 1.55 → TDEE ≈ 2,077 kcal/day.
- A mild deficit might target ~300–500 kcal below that estimate — individual advice varies.
- Open the Calorie / TDEE Calculator (tdee) and note the starting defaults (weight 70 kg, height 175 cm, age 30 years, sex male, activity level moderate).
Result: With defaults (weight 70 kg, height 175 cm, age 30 years, sex male, activity level moderate), the Calorie / TDEE Calculator shows: TDEE (maintenance) 2,556 kcal/day.
To load the form's own demo values, tap Try example above the Calculate button.
How to calculate / formula
TDEE ≈ BMR × activity factor (sedentary ≈ 1.2 through very active ≈ 1.9, depending on the scale labeled on the form). Health formulas use widely published educational equations (e.g. BMI, Mifflin–St Jeor BMR, Navy body-fat, macro splits). They are population averages — not clinical measurements — and never replace medical advice, lab work, or a licensed clinician’s judgment. For the Calorie / TDEE Calculator, the labeled fields (Weight (kg), Height (cm), Age (years), Sex) drive the live result panel.
Frequently asked questions
What does TDEE mean?
Total daily energy expenditure — estimated calories burned per day including activity.
Which activity level should I pick?
Be honest. Most desk workers overestimate. When unsure, choose the lower plausible level.
Can I use TDEE for weight loss?
People often start from TDEE and create a modest deficit. Medical contexts need professional care.
Why does my wearable disagree?
Wearables and equations use different models. Use trend weight and energy as feedback.
Next step after TDEE?
Macro calculators can split calories into protein, carbs, and fat for educational planning.
What does the Calorie / TDEE Calculator on MyCalcsWorld actually compute?
Total Daily Energy Expenditure from BMR and activity level. You enter Weight (kg), Height (cm), Age (years), Sex, Activity level, and the result panel updates in your browser.
What inputs does the Calorie / TDEE Calculator need?
The Calorie / TDEE Calculator asks for: Weight (kg); Height (cm); Age (years); Sex; Activity level.
What results does the Calorie / TDEE Calculator show?
The panel reports TDEE (maintenance). Each figure is recalculated whenever you change an input, so you can compare scenarios side by side.
For education and personal goal-setting only — not medical advice, diagnosis, or treatment. Talk to a qualified clinician about your health. Full disclaimer