How to use the total daily energy expenditure calculator
Estimate daily calorie needs by multiplying your basal metabolic rate by an activity factor. Enter basal metabolic rate, activity level in the fields above; the total daily energy expenditure, weight loss target (500 kcal deficit) are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “TDEE calculator”, “how many calories do I need”, “maintenance calories”, “calculate total daily energy expenditure”, “find total daily energy expenditure”.
Formula
Variables
- bmr — Basal metabolic rate (kcal/day)
- act — Activity level
Worked example
With basal metabolic rate = 1650 kcal/day, activity level = Moderately active, the calculator gives total daily energy expenditure ≈ 2,557.5 kcal/day; weight loss target (500 kcal deficit) ≈ 2,057.5 kcal/day.
Frequently asked questions
What is the total daily energy expenditure calculator used for?
Estimate daily calorie needs by multiplying your basal metabolic rate by an activity factor. It helps with questions such as “TDEE calculator”, “how many calories do I need”, “maintenance calories”.
What is the formula for the total daily energy expenditure calculation?
Total daily energy expenditure (kcal/day) = bmr × act. Weight loss target (500 kcal deficit) (kcal/day) = [Total daily energy expenditure]-500. Here bmr is basal metabolic rate (kcal/day), act is activity level.
What inputs do I need for the total daily energy expenditure calculator?
You need basal metabolic rate in kcal/day, activity level. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the total daily energy expenditure calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the total daily energy expenditure result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.