Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Carb Counting Calculator
Calculate total carbohydrate grams in a portion by multiplying number of servings by carbs per serving. Use it for diabetes management (carb-to-insulin ratio dosing), low-carb diet tracking, and general macronutrient monitoring.
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
| Carb Counting Calculator | BMR / TDEE Calculator | |
|---|---|---|
| Category | Nutrition | Health |
| Inputs required | 2 | 5 |
| Result | Total Carbohydrates (grams) | Daily Calorie Needs (calories) |
| What it does | Calculate total carbohydrate grams in a portion by multiplying number of servings by carbs per serving. Use it for diabetes management (carb-to-insulin ratio dosing), low-carb diet tracking, and general macronutrient monitoring. | 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. |