Your details
Your inputs stay in this browser. Results are planning estimates, not medical advice or a substitute for individual clinical guidance.
How to use the TDEE calculator
Use the result as a starting point for calorie planning, then adjust it against your real-world intake and weight trend.
Enter body details
Choose the sex used by the equations, enter your age, body weight and height, then select kilograms or pounds and centimetres or feet and inches as appropriate.
Choose typical activity
Select the activity level that best represents a typical week. The calculator applies its displayed multiplier to both resting-energy estimates.
Compare the estimates
Review the average daily calorie estimate alongside the Mifflin–St Jeor and revised Harris–Benedict results. Use the range as a planning starting point rather than an exact measurement.
Frequently Asked Questions
What is TDEE?
TDEE means total daily energy expenditure: an estimate of the energy used across an average day, including usual activity.
What is the difference between BMR and TDEE?
BMR estimates resting expenditure, while TDEE applies an activity multiplier to estimate expenditure across a full day.
Is TDEE measured by this calculator?
No. It is predicted from equations and a broad activity category, not directly measured.
Why do the two estimates differ?
The named BMR equations were developed from different datasets and coefficients, so normal model variation is expected.
Which activity level should I choose?
Choose the option that best reflects your usual week, including work and deliberate exercise. If uncertain, begin conservatively and compare the result with your trend.
Should I add exercise calories again?
Usually not when the selected multiplier already represents your usual exercise, because adding them again can double count activity.
How should I use my TDEE estimate?
Use it as a calorie-planning starting point, then make gradual changes based on consistently tracked intake, body-weight trend and appropriate professional advice.