Calculate daily protein, carb, and fat targets using TDEE and goal-based macro presets.
Macronutrients are the three major nutrients — protein, carbohydrates, and fat — that provide calories. Tracking macros allows precise control over body composition, energy, and performance.
Protein
197g
Carbs
263g
Fat
88g
Formula
Macros (g) = Target Calories × macro% ÷ calories per gramProtein = 4 kcal per gram — builds and preserves muscle
Carbohydrates = 4 kcal per gram — primary fuel for exercise
Fat = 9 kcal per gram — hormones, fat-soluble vitamins
Worked Example
Example: 2,000 kcal target, balanced split (30/40/30)
Did you know? Gram for gram, fat contains more than twice the calories of protein or carbohydrates (9 kcal/g vs 4 kcal/g). This is why high-fat foods are so calorie-dense — a tablespoon of olive oil contains 120 calories, nearly the same as 30g of chicken breast.
Sources
| Goal | Recommended Split | Notes |
|---|---|---|
| Weight Loss | 40% P / 30% C / 30% F | High protein preserves muscle |
| Muscle Gain | 35% P / 45% C / 20% F | Carbs fuel workouts |
| Maintenance | 30% P / 40% C / 30% F | Balanced approach |
| Athletic Performance | 25% P / 55% C / 20% F | Carbs for endurance |
Calculate BMR using 3 validated formulas. See daily calorie needs by activity level.
Estimate BAC using the Widmark formula. Enter drinks, weight, and hours to gauge impairment.
Calculate BMI and see your weight category. Includes healthy weight range for your height.
Calculate body fat percentage using the US Navy method with simple body measurements.
Calculate daily calorie needs with BMR and TDEE. Get targets for weight loss, maintenance, or gain.
Calculate gestational age from your LMP. See due date, trimester, and milestones.