Calorie Calculator – TDEE & Daily Maintenance Calories (Free)
Estimate total daily energy expenditure (maintenance calories) from age, sex, height, weight, and typical activity—using Mifflin–St Jeor BMR × standard activity multipliers.
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Quick answer
A calorie calculator estimates daily energy needs by combining a basal metabolic estimate with an activity multiplier you select.
It outputs approximate maintenance calories so you can reason about intake versus expenditure for planning.
Individual needs differ; athletes, clinical patients, and pregnancy require tailored guidance from qualified professionals.
Years
Centimeters
Kilograms
Result
Enter values and click calculate.
Formula
TDEE = BMR × activity factor. BMR (Mifflin–St Jeor): men 10w + 6.25h − 5a + 5; women 10w + 6.25h − 5a − 161 (w=kg, h=cm, a=age).
Explanation
Calorie Calculator computes results using the formula TDEE = BMR × activity factor. BMR (Mifflin–St Jeor): men 10w + 6.25h − 5a + 5; women 10w + 6.25h − 5a − 161 (w=kg, h=cm, a=age). from your input values: sex, age, height, weight, and activity level. Entering each field returns a numerical answer based on that exact equation, so the page is a faster, less error-prone alternative to running the math by hand.
It is built for personal wellness tracking and routine planning, estimating body metrics before fitness decisions, and building healthier goals with measurable numbers. People typically open this calculator when they need a quick, repeatable answer they can check in seconds—students confirming a homework number, professionals validating a real-world figure, or anyone running a what-if scenario before making a decision.
Read the result alongside the formula on this page so each input's effect is transparent, then re-run with adjusted values to see how the answer changes. If anything looks off, double-check unit consistency in your inputs—mixing percent values with decimals or months with years is the most common source of an unexpected result.
How to Use
- Enter or choose Sex (Female / Male), Age, Height, Weight, and Activity level (Sedentary (little or no exercise) / Light (1–3 days/week) / Moderate (3–5 days/week) / Active (6–7 days/week) / Very active (hard daily / physical job)) as indicated.
- Use the units shown under each field (for example kg, m, cm, years).
- Click Calculate to run the TDEE = BMR × activity factor. BMR (Mifflin–St Jeor): men 10w + 6.25h − 5a + 5; women 10w + 6.25h − 5a − 161 (w=kg, h=cm, a=age). formula.
- Read the result and compare with alternate values if you want scenario-based planning.
Example
Sample inputs: Sex = man, Age = 35, Height = 178, Weight = 82, Activity level = moderate
Calculated result: 2732.0000
You can replace these values with your own numbers to calculate a real-world result instantly.
FAQ
What is a calorie calculator?
Calorie Calculator helps you apply the formula "TDEE = BMR × activity factor. BMR (Mifflin–St Jeor): men 10w + 6.25h − 5a + 5; women 10w + 6.25h − 5a − 161 (w=kg, h=cm, a=age)." quickly using your own values.
When should I use this calorie calculator?
Use it when you need quick and repeatable health calculations without manual errors.
How accurate are the results?
Results are formula-based and depend on entering correct values with the right units.
Why am I seeing an invalid input message?
One or more required values are missing, non-numeric, or caused a divide-by-zero condition.
Is this calculator free to use?
Yes. You can use this calculator online for free.
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