How to use Daily Energy Estimate (TDEE)
Explore resting energy and a chosen activity multiplier with adult-only limitations.
- Check the units and understand which equation coefficient you selected.
- Keep the resting estimate separate from the activity-multiplied scenario.
- Read the limitations and discuss individual dietary needs with a qualified professional.
Formula & calculation method
Resting estimate = 10 × kg + 6.25 × cm − 5 × age + equation coefficient (+5 or −161). Illustrative daily energy = resting estimate × your activity-multiplier assumption.
Input reference · 5 fields
These labels describe the calculation’s base units. Supported measurements can switch through the header’s region settings; follow the current workspace labels. Prefilled values are examples.
- Weight (kg)
- Enter a plain number with a decimal point if needed. The workspace shows an illustrative value, not a recommendation.
- Height (cm)
- Enter a plain number with a decimal point if needed. The workspace shows an illustrative value, not a recommendation.
- Age (18–100 years)
- Enter a plain number with a decimal point if needed. The workspace shows an illustrative value, not a recommendation.
- Equation coefficient
- Coefficients from the original Mifflin–St Jeor equation; individual physiology may differ.
- Activity multiplier assumption
- Illustrative only, usually modeled between 1.2 and 2.5. This field is not a clinical assessment.
A quick example
At 70 kg, 175 cm and age 30 with the +5 coefficient, resting energy is 1,648.75 kcal/day. A user-selected factor of 1.4 gives an illustrative 2,308.25 kcal/day before rounding.
Assumptions, edge cases & limits
- For educational adult use only; not for children, pregnancy or breastfeeding, and not a personal eating target. The activity factor is a heuristic, not a clinical measurement. Do not infer a diet or deficit from BMI.
- The supported adult age range is 18–100. The activity factor is an input assumption, not a measured activity classification.
Questions about Daily Energy Estimate (TDEE)
Is the TDEE estimate a personalized calorie target?
No. It multiplies a resting-energy equation by your assumed activity factor. It cannot assess health, actual activity, pregnancy, illness or individual dietary requirements.
What activity multiplier should I choose?
Use an assumption appropriate to the scenario you want to explore and compare alternatives. The prefilled multiplier is illustrative and is not a clinical assessment of your activity.
Are my files or inputs uploaded?
Calculation and file processing run in your browser without a processing upload. Downloads go to your device. Choosing a next-step transfer creates a temporary local copy for that workflow. Region preferences are stored separately from tool inputs. See our privacy details.
Can I use this tool for free?
Yes. No signup, subscription or payment is required to use the tool or download its output. File tools have device and size limits; a smaller batch may work better on a phone.
Method & references
Read the underlying method or measurement convention in context. These references do not imply affiliation or endorsement.
Mifflin et al.: original resting-energy equation ↗Educational health estimates. No independent clinical review is claimed.A result or explanation needs correcting? Tell us the tool name and an example.