Health and Fitness

  • Calories per Pound of Bodyweight Calculator
    Estimate daily maintenance calories using the calories-per-pound rule. Pick cut (×12), maintain (×15), or bulk (×18) to find your target intake fast.
  • Cups to Grams Calculator
    Convert cups to grams for any ingredient using density. Pick flour, sugar, butter, water and more, or enter a custom g/mL value. Free and instant.
  • Dog Treat Calorie Limit Calculator
    Find how many treat calories your dog can have per day using the vet 10% rule. Enter weight and activity to get a safe daily treat calorie limit.
  • VO2 Max Calculator (Cooper 12-Minute Run Test)
    Estimate your VO2 max from the Cooper 12-minute run test. Enter the distance you covered in meters to get your aerobic fitness score instantly.
  • Grams of Protein Per Meal Calculator
    Convert grams of protein, carbohydrates and fat into calories. Calculate total kcal and macro percentage breakdown using the 4-4-9 Atwater factors.
  • Bulking Calorie & Macro Calculator
    Calculate your daily bulking calories and macros (protein, carbs, fat) for muscle gain using your TDEE plus a 250–500 kcal surplus.
  • Time to Reach Goal Weight Calculator
    Estimate how many weeks it will take to reach your goal weight based on your daily calorie deficit. Uses the 3,500 calories per pound rule.
  • Marathon Pace Calculator
    Convert your marathon goal finish time into the exact pace per km or mile you need to run. Free pace chart calculator with average speed.
  • Steps to Distance Calculator
    Convert your step count into distance in miles or kilometers. Estimates stride length from your height and gender for an accurate walking distance.
  • Daily Protein Intake by Body Weight Calculator
    Calculate your daily protein needs in grams based on body weight and goal (0.8–2.2 g/kg). Includes per-meal split and protein calories.
  • Weekly Weight Loss Calculator
    Find the daily calorie deficit needed to lose a set number of pounds per week. Uses the 3,500 calories per pound rule for fast, simple planning.
  • Weeks Pregnant Calculator
    Find out how many weeks pregnant you are today. Calculate gestational age in weeks and days from your last menstrual period (LMP) date.
  • SOFA Score Calculator
    Calculate the SOFA (Sequential Organ Failure Assessment) score from 6 organ subscores to gauge organ dysfunction and estimate ICU mortality risk.
  • Baby Age in Weeks and Months Calculator
    Find your baby's age in weeks, days and whole months from their date of birth. Quick, accurate infant age calculator for any "as of" date.
  • Ankle-Brachial Index (ABI) Calculator
    Calculate the Ankle-Brachial Index (ABI) from ankle and arm systolic blood pressures to screen for peripheral artery disease (PAD).
  • BMR Calculator (Mifflin-St Jeor)
    Calculate your Basal Metabolic Rate with the Mifflin-St Jeor equation. Enter weight, height, age and gender to get daily resting calories plus TDEE estimates.
  • Pack-Years Calculator
    Calculate smoking pack-years from cigarettes per day and years smoked. Free tool using the standard pack-years formula for medical screening.
  • Macronutrient Calculator
    Convert your daily calorie target and macro percentage split into grams of protein, carbohydrates, and fat per day. Free macro calculator.
  • Salt to Sodium Converter
    Convert grams of salt to milligrams of sodium instantly. 1 g of salt equals 393.4 mg of sodium — track your daily sodium intake easily.
  • BMR Calculator (Mifflin-St Jeor)
    Calculate your Basal Metabolic Rate using the Mifflin-St Jeor equation. Enter weight, height, age and gender to find daily resting calories.
  • Creatinine Clearance Calculator (Cockcroft-Gault)
    Estimate creatinine clearance (CrCl) with the Cockcroft-Gault equation using age, weight, sex and serum creatinine. Get mL/min and a kidney function category.
  • Carb to Insulin Ratio (Bolus) Calculator
    Estimate a mealtime insulin bolus from carbs, your carb ratio (ICR), current and target blood glucose, and insulin sensitivity factor (ISF).
  • Calories Burned Walking Calculator
    Estimate calories burned walking from your weight, walking speed and duration. Get kcal, distance and approximate step count using MET values.
  • Postpartum Weight Loss Calculator
    Estimate how many weeks to reach your goal weight after birth using safe loss rates (~0.5 kg/week if breastfeeding). General guidance only.

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