Accurate Calorie Calculator: Maintenance & Net Calories, TDEE, BMR & TEF

This calorie calculator estimates your BMR (basal metabolic rate), TEF (thermic effect of food), TDEE (total daily energy expenditure) and maintenance calories — with features most calculators miss:

you can enter real activity calories from your fitness tracker
calculate a more accurate thermic effect of food based on your macro breakdown (protein, carbs, fat) or a custom percentage
we provide a net calorie target to use in tracking apps like MyFitnessPal or Lose It!.

If you prefer, you can keep it simple and use standard physical activity levels (PAL) for a quick estimate. Either way, you get transparent assumptions and a clearer view of maintenance, deficit, surplus, and net calories.

Profile

Sex, age, height, weight, and optional body-fat %

Sex Age

Height

cm ft/in

Weight

kg lb

Body fat % (optional but recommended for more accurate calculation)

You can use this chart as a guide if you are unsure.

Physical Activity

Calories burned through exercise (Exercise Activity Thermogenesis, EAT) and daily movement (Non-Exercise Activity Thermogenesis, NEAT).

Choose a basic physical activity level (PAL) multiplier for a quick estimate, or enter manual activity calories (for example from Apple Watch, Fitbit, Garmin, or MyFitnessPal) to get a more personalized result.

Physical activity level (Basic) Manual calories (More accurate)

Select your physical activity level (PAL)

How to choose the right activity level

PAL values approximate average daily movement and training to scale your BMR to full-day needs.

Minimal activity (x1.1): Bedridden or minimal mobility (e.g., only moving within the house). Virtually no steps, exclusively lying or sitting.
Lightly Active (x1.3): Predominantly sedentary or lying activities without significant daily movement. 2,000–3,000 steps per day, short walks at home, no additional physical activity.
Normally Active (x1.4): Sedentary job with occasional movement or short walks. 4,000–6,000 steps per day or 30 minutes of light activity (e.g., walking).
Moderately Active (x1.5): Sedentary job with more daily movement or regular walking. 8,000–10,000 steps per day or 45 minutes of moderate activity (e.g., brisk walking).
Active (x1.6): Sedentary job with a lot of daily movement or a light daily workout. 10,000–12,000 steps per day or 60 minutes of moderate activity (e.g., walking, cycling).
Very Active (x1.7): Mostly standing or walking work, supplemented with sports activities. 12,000–15,000 steps per day or 60–75 minutes of more intense activity (e.g., jogging).
Athlete (x2.3): A highly active lifestyle, usually including professional or intensive sports training. 20,000 steps per day or 2–3 hours of exercise (e.g., endurance or strength training).

Thermic Effect of Food (TEF)

The Thermic Effect of Food represents the energy cost of digesting and assimilating food.

Physical activity levels already implicitly include an average TEF. If you switch to manual activity calories, you can choose how to model TEF - either as a fixed % or macro-weighted based on your diet.