Specialized Health Calculators
Keto macros, intermittent fasting windows, pregnancy weight, alcohol calories, and comprehensive goal planning tools.
Intermittent Fasting Calculator
Find your eating and fasting windows for popular IF protocols including 16:8, 18:6, and 5:2.
Calculate now →Keto Macro Calculator
Calculate your personalized macros for a ketogenic diet: carbs, protein, and fat targets to enter and maintain ketosis.
Calculate now →Pregnancy Weight Calculator
Calculate recommended gestational weight gain based on pre-pregnancy BMI and Institute of Medicine guidelines.
Calculate now →Alcohol Calorie Calculator
Calculate the calories in alcoholic drinks and see how they fit into your daily calorie budget.
Calculate now →Cheat Meal Calculator
Calculate how a cheat meal or high-calorie day affects your weekly calorie budget and weight loss progress.
Calculate now →Metabolic Age Estimator
Estimate your metabolic age by comparing your BMR to average values for your age group.
Calculate now →How Long to Lose Weight
Calculate how long it will take to reach your goal weight based on your current deficit and realistic rate of loss.
Calculate now →What Should I Eat Today Calculator
Get a quick personalized daily eating plan based on your calorie target, macros, and preferred meal structure.
Calculate now →Custom Goal Planner
Build a personalized nutrition and fitness plan for any goal: fat loss, muscle gain, recomposition, or athletic performance.
Calculate now →About Specialized Calculators
These tools address specific dietary approaches and life stages — from ketogenic diet adherents tracking net carbs, to expectant mothers monitoring gestational weight gain, to anyone planning a comprehensive fitness phase. All use peer-reviewed formulas and guidelines from IOM, AHA, and sports nutrition research.