Nutrition Calculators
Calories, macros, and daily intake targets.
14 free tools available
- Nutrition
Recipe Nutrition Analyzer
Paste any recipe or ingredient list and get estimated nutrition per serving. AI parses ingredients, USDA FoodData Central provides the numbers. Free, no Open - Nutrition
Food & Symptom Diary
Free food and symptom diary tracker. Log meals, timing, and symptoms over days, then print a clean timeline to show your doctor or dietitian. Not a Open - Nutrition
Anti-Inflammatory Diet Score
Score your diet for anti-inflammatory foods (vegetables, fruit, fatty fish, olive oil, nuts) vs pro-inflammatory foods (processed meat, sugar, fried Open - Nutrition
Gut Health Score
Score your gut-friendly habits from fiber, plant diversity, fermented foods, sleep, stress, and more. Educational lifestyle tool Open - Nutrition
Vitamin D & Sun Exposure Calculator
Estimate your vitamin D synthesis potential from sun, skin type, and diet. Educational guide with safe-sun reminders. This does NOT measure blood vitamin D Open - Nutrition
Calorie Calculator
Find your daily calorie target (TDEE) for losing, maintaining, or gaining weight. Open - Nutrition
Intermittent Fasting Calculator & Timer
Pick a protocol (16:8, 18:6, OMAD, 5:2), set your eating window, and run a live fasting timer. Open - Nutrition
Protein Intake Calculator
Get your daily protein target based on body weight and activity. Open - Nutrition
Keto Calculator
Get your ketogenic macros (70/25/5) and daily net carb limit. Open - Nutrition
Calorie Deficit Calculator
See the daily deficit needed to lose a target weight by your chosen date. Open - Nutrition
Water Intake Calculator
Find how much water to drink each day, in liters and fluid ounces. Open - Nutrition
Macro Calculator
Split your calories into protein, carbs, and fat that fit your goal. Open - Nutrition
Muscle Preservation Calculator
Keep muscle while losing weight — get your protein target, a muscle-loss risk check, and an action plan. Open - Nutrition
7-Day Meal Plan Generator
Turn your calorie and macro targets into a free, personalized week of meals with a grocery list. Open
Want your full picture?
Combine your results with the free HealthyLifeStyles Health Score assessment.