TDEE Activity Adjusted Calculator

Quick answer

Work out maintenance calories from the Mifflin-St Jeor formula, using the 7,700 kcal/kg rule to plan a safe 0.25–1% body-weight change per week.

Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.

How Does the TDEE Activity Adjusted Calculator Work?

The TDEE Activity Adjusted Calculator allows you to perform calculations quickly and easily. Simply enter the required values and click the calculate button to get instant results.

1
Enter Values
Fill in the fields with your values and continue.
2
Adjust Settings
Enter your body data and exercise goals.
3
View Results
Click the "Calculate" button to see the result instantly.

Use Cases

Goal setting

Convert a target weight into a daily intake you can actually hold

Diet planning

Anchor calorie targets in a validated formula instead of guesswork

Progress tracking

Recalculate after every 4–5 kg change to keep targets honest

Common Mistakes

Treating a 10%-error estimate as an exact prescription
Overestimating activity level and eating back the difference
Never recalculating after weight changes

FAQs

How accurate is the TDEE Activity Adjusted Calculator?

Within about 10% of lab-measured energy expenditure, so treat the result as a starting range of ±200 kcal.