Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Calorie Deficit Calculator
Find the daily calorie target you need to hit to lose weight at a chosen pace — the operational number that turns "I want to lose 5 kg" into "eat 1,950 kcal a day starting Monday." Enter your TDEE (maintenance calories) and the rate at which you want to lose weight, and the calculator returns the daily intake target along with a projected timeline.
BMR / TDEE Calculator
Estimate your daily calorie needs using the revised Harris-Benedict equation, then adjust for activity to get your Total Daily Energy Expenditure (TDEE) — the rough number of calories you burn in 24 hours when you eat a maintenance diet. Enter your weight in kilograms, height in centimetres, age, biological sex, and an activity multiplier (sedentary 1.2, lightly active 1.375, moderately active 1.55, very active 1.725, extremely active 1.9). The result is what most nutrition guides call your "maintenance calories" — a starting point for designing a deficit (to lose weight), a surplus (to gain muscle), or a recomposition plan.
Key differences
| Calorie Deficit Calculator | BMR / TDEE Calculator | |
|---|---|---|
| Category | Fitness | Health |
| Inputs required | 5 | 5 |
| Result | Daily Calorie Target (calories) | Daily Calorie Needs (calories) |
| What it does | Find the daily calorie target you need to hit to lose weight at a chosen pace — the operational number that turns "I want to lose 5 kg" into "eat 1,950 kcal a day starting Monday." Enter your TDEE (maintenance calories) and the rate at which you want to lose weight, and the calculator returns the daily intake target along with a projected timeline. | Estimate your daily calorie needs using the revised Harris-Benedict equation, then adjust for activity to get your Total Daily Energy Expenditure (TDEE) — the rough number of calories you burn in 24 hours when you eat a maintenance diet. Enter your weight in kilograms, height in centimetres, age, biological sex, and an activity multiplier (sedentary 1.2, lightly active 1.375, moderately active 1.55, very active 1.725, extremely active 1.9). The result is what most nutrition guides call your "maintenance calories" — a starting point for designing a deficit (to lose weight), a surplus (to gain muscle), or a recomposition plan. |