TDEE Calculator: Find Your Total Daily Energy Expenditure
TDEE — Total Daily Energy Expenditure — is the number serious fitness tracking actually runs on, more useful day-to-day than BMR alone because it accounts for how active you actually are. If you've seen conflicting calorie advice for cutting, bulking, or maintaining, it usually traces back to an inaccurate TDEE estimate. Here's how it's calculated and how to use it correctly.
TDEE vs. BMR: What's the Difference
BMR is the energy you'd burn lying still all day. TDEE is BMR multiplied by an activity factor, representing your actual total energy burn including movement, exercise, and digestion. TDEE is always higher than BMR, and it's the number you should use for setting calorie targets — using BMR alone will undershoot your real needs.
The Activity Multiplier Table
| Activity Level | Description | Multiplier |
|---|---|---|
| Sedentary | Little to no exercise, desk job | 1.2 |
| Lightly active | Light exercise 1-3 days/week | 1.375 |
| Moderately active | Moderate exercise 3-5 days/week | 1.55 |
| Very active | Hard exercise 6-7 days/week | 1.725 |
| Extremely active | Physical job + daily training | 1.9 |
TDEE = BMR × Activity Multiplier
Example: BMR of 1,500 calories, moderately active (1.55) — TDEE = 1,500 × 1.55 = 2,325 calories/day.
Using TDEE to Cut, Bulk, or Maintain
| Goal | Calorie Target |
|---|---|
| Maintain weight | Eat at TDEE |
| Cut (fat loss) | TDEE − 15-25% |
| Lean bulk (muscle gain) | TDEE + 10-15% |
Cutting too aggressively (large deficits) risks muscle loss and makes the diet harder to sustain. A moderate, sustained deficit consistently outperforms extreme short-term cuts for long-term results.
The Most Common TDEE Mistake
Overestimating activity level is the single biggest source of inaccurate TDEE numbers. "Moderately active" means structured exercise 3-5 days a week — a desk job with occasional weekend activity is closer to "lightly active" or even "sedentary." When in doubt, pick the lower activity level and adjust upward if your real-world weight trend shows you're losing weight faster than expected at your target intake.
How to Use the TDEE Calculator
- Open the TDEE Calculator
- Enter your age, sex, height, and weight
- Select your activity level as accurately as possible
- View your TDEE, and use it to set a cutting, maintenance, or bulking calorie target
Frequently Asked Questions
How is TDEE different from the Calorie Calculator on this site?
They use the same underlying formula. The Calorie Calculator presents ready-made targets for weight loss/gain goals directly; the TDEE Calculator focuses on the maintenance number itself so you can apply your own deficit or surplus percentage.
Should I recalculate my TDEE as I lose weight?
Yes. TDEE drops as body weight decreases, since a lighter body burns fewer calories at rest and during activity. Recalculate every 10-15 lbs of change, or if progress stalls for more than 2-3 weeks despite consistent adherence.
Why is my actual weight change not matching my calculated deficit?
Calorie tracking error (both intake and activity level) is the most common cause — even careful tracking has margin for error. Water retention, especially around training changes or diet shifts, can also mask fat loss for 1-2 weeks. Trust the trend over 3-4 weeks rather than day-to-day fluctuations.
