TDEE Calculator
Estimate daily calorie needs using BMR and activity level.
Notes
This uses the Mifflin-St Jeor equation for BMR then multiplies by activity factor to estimate TDEE. Use as a guideline only.
TDEE Calculator — Detailed Guide & Expert Explanation
You enter age, gender, weight, height, and activity level. The calculator computes BMR and multiplies it by an activity factor to estimate TDEE.
By automating metabolic math, the tool helps you plan calorie intake for weight loss, gain, or maintenance.
Formula & Calculation Method
BMR (Mifflin-St Jeor) = 10W + 6.25H − 5A + s
TDEE = BMR × Activity Factor
The tool uses the Mifflin‑St Jeor equation for BMR, then multiplies by an activity multiplier ranging from sedentary to highly active.
Real-World Use Cases
Expert Notes & Limitations
Frequently Asked Questions
Is TDEE accurate?
It is an estimate based on standard formulas.
Does muscle mass affect TDEE?
Yes, but formulas do not measure muscle directly.
Can I use TDEE for weight loss?
Yes. Eating below TDEE leads to weight loss.
Does activity level matter?
Yes. It significantly affects TDEE.
Should I recalculate TDEE?
Yes, when weight or activity changes.