Everyday & Health Calculators
Fitness, calories, nutrition, hydration, exercise, running, cooking, sleep, pregnancy, household, shopping, and pet tools.
The everyday health tools give general estimates such as daily water intake and activity-related figures from standard published formulas. They are for general information only and are not medical advice.
People differ in age, health conditions and medication, which these formulas cannot account for. Talk to a doctor or qualified professional before making health decisions.
BMI Calculator (Body Mass Index)
Calculate your Body Mass Index (BMI) and BMI Prime value with official weight classification categories.
Ideal Body Weight Calculator
Calculate ideal body weight (IBW) using Devine, Hamwi, Robinson, and Miller equations.
U.S. Navy Body Fat Calculator
Estimate body fat percentage using U.S. Navy anthropometric waist, neck, and hip measurements.
Body Surface Area (BSA) Calculator
Calculate Body Surface Area using Mosteller and DuBois formulas.
BMR Calculator (Basal Metabolic Rate)
Calculate your Basal Metabolic Rate using the Mifflin-St Jeor and Katch-McArdle equations.
TDEE Calculator (Total Daily Energy Expenditure)
Determine your daily calorie burn based on activity level for fat loss or muscle gain.
Macronutrient Calculator (Protein, Carbs & Fat)
Calculate optimal protein, carbohydrate, and fat intake grams for cutting, maintenance, or bulking.
Daily Water Intake Calculator
Calculate optimal daily water hydration based on weight, exercise duration, and ambient climate.
One Rep Max (1RM) Calculator
Estimate your 1RM maximum lift weight using Epley, Brzycki, and Lander formulas.
Running Pace & Speed Calculator
Calculate running pace per kilometer or mile, target speed, and projected finish time.
Recipe & Portion Scaler Calculator
Scale recipe ingredient quantities up or down based on original and desired serving counts.
Sleep Cycle & Bedtime Calculator
Calculate optimal bedtimes and wake times based on 90-minute REM sleep cycles.
Pregnancy Due Date & Fertile Window Calculator
Calculate estimated due date using Naegele’s rule based on last menstrual period (LMP).
Appliance Electricity Cost Calculator
Calculate power consumption (kWh) and operating cost for household electrical appliances.
Unit Price & Grocery Comparison Calculator
Compare product packaging deals to find the true lowest cost per unit, gram, or fluid ounce.
Dog Age in Human Years Calculator
Calculate your dog’s true age in human years based on body size and weight classification.
Weight Loss Percentage Calculator
Calculate total weight loss percentage, remaining target weight, and weekly progress rate.
Baking Ingredient Weight-to-Volume Calculator
Convert baking cups to grams for flour, sugar, butter, and cocoa powder by ingredient density.
Pomodoro & Focus Session Calculator
Calculate session schedules, break intervals, and total focus time for study or work goals.
Habit Consistency & Completion Score Calculator
Calculate habit adherence percentage, streak milestones, and progress score over weekly or monthly cycles.
Restaurant Tip & Group Bill Splitter
Calculate total tip amount, total bill with tax, and exact split per person for group dining.
Heart Rate Zone Calculator (Karvonen)
Estimate maximum heart rate and five training zones using the Tanaka and Karvonen formulas.