Daily calorie calculator
TDEE & daily calorie calculator
Find your total daily energy expenditure and how many calories to eat to lose, maintain or gain weight.
Track it automatically
Know the calories without the math
These numbers are your starting point. Nishnush logs the calories and macros of any meal from a single photo — so hitting your targets takes seconds, not spreadsheets.
Your result
Fill in your details to see your result.
For information only — not medical advice. Estimates use standard formulas and vary from person to person.
How it works
Your Total Daily Energy Expenditure (TDEE) is everything you burn in a day: your resting metabolism plus the energy used by movement, exercise and digestion. It is the calorie level that keeps your weight steady.
To lose weight, eat below your TDEE (a deficit of about 500 calories a day is roughly half a kilo per week). To gain, eat above it. We calculate BMR with Mifflin-St Jeor, then multiply by your activity level.
The formula
TDEE = BMR × activity factor. Sedentary ×1.2, lightly active ×1.375, moderately active ×1.55, very active ×1.725, athlete ×1.9.
Frequently asked questions
How many calories should I eat to lose weight? +
A common, sustainable target is about 500 calories below your TDEE — roughly half a kilo (one pound) of fat loss per week. Avoid going far below your BMR.
Why do TDEE calculators give different numbers? +
Most use the same BMR formulas but different activity multipliers, and activity is an estimate. Treat the number as a well-informed starting point and adjust based on real results.
How do I actually hit these calories? +
Knowing the target is easy; tracking is the hard part. Snap a photo of your meal in Nishnush and it logs the calories and macros, so you can see how each meal fits your TDEE.