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Calculate Your Personalized Weight Loss Macros
Get your daily protein, carbs, and fat targets optimized for sustainable fat loss. Our science-based calculator creates a personalized plan based on your body composition, activity level, and goals.
Get your personalized macro targets in just a few steps. Our calculator is pre-configured for your specific goal.
We'll use this to calculate your daily energy needs.
Successful fat loss isn't just about eating less—it's about eating the right balance of macronutrients. Protein preserves muscle mass during weight loss, carbs fuel your workouts, and healthy fats support hormone production. Our calculator uses a 40/30/30 protein/carbs/fat split with a 500-calorie deficit for steady, sustainable fat loss of 1-2 pounds per week.
Research shows that higher protein intake (35-40% of calories) during fat loss helps preserve lean muscle mass and increases satiety. We combine this with moderate carbs to fuel your workouts and adequate fats for hormone production. The 500-calorie deficit creates the energy gap needed for consistent fat loss without being so aggressive that it triggers metabolic slowdown.
Once you have your macro targets, focus on whole foods: lean proteins (chicken, fish, tofu), complex carbs (oats, rice, potatoes), and healthy fats (avocado, nuts, olive oil). Track your intake for the first few weeks to learn portion sizes, then you can eat more intuitively while staying within your targets.
Sarah is a 32-year-old woman who works out 4 times per week and wants to lose fat while maintaining her muscle mass.
With a BMR of 1,420 calories and TDEE of 2,150 calories, Sarah's fat loss plan includes a 500-calorie deficit. Her high protein target (165g) will help preserve muscle mass during weight loss, while her carb and fat targets provide energy for workouts and daily activities.
Common questions about macro calculation and nutrition planning.
For fat loss, aim for 0.8-1.2 grams of protein per pound of body weight. Higher protein intake helps preserve muscle mass during weight loss, increases satiety, and has a higher thermic effect, meaning you burn more calories digesting it.
While low-carb diets can work, they're not necessary for fat loss. Carbs fuel your workouts and help maintain performance. A moderate carb approach (25-35% of calories) allows for better workout quality and is more sustainable long-term.
Aim for 1-2 pounds per week for sustainable fat loss. This typically requires a 500-750 calorie deficit. Faster weight loss often leads to muscle loss and metabolic slowdown, making it harder to maintain your results.
If you're not losing weight after 2-3 weeks, you may need to adjust your activity level or reduce calories by 100-200. Weight loss isn't always linear—focus on trends over 2-4 weeks rather than daily fluctuations.
While you can technically lose weight eating any foods within your macros, prioritizing whole foods will help you feel fuller, have more energy, and get essential micronutrients. Aim for 80% whole foods and 20% treats.
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