Fitness & Health
18 free calculators
BMI, calorie, macro, pregnancy, body fat, and wellness calculators.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly. Supports both metric (kg/cm) and imperial (lb/in) units. Includes BMI chart and weight categories.
Calorie Calculator
Calculate how many calories you need per day to lose weight, maintain, or gain muscle. Based on Mifflin-St Jeor equation with activity multiplier.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) — the calories your body burns at complete rest. Uses Mifflin-St Jeor and Harris-Benedict equations.
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE). Multiply BMR by activity level to find exact calories burned per day.
Body Fat Calculator
Calculate body fat percentage using the US Navy method or BMI method. Enter measurements to estimate fat mass and lean body mass.
Ideal Weight Calculator
Find your ideal body weight based on height and gender. Uses multiple formulas including Devine, Robinson, and Miller methods.
Macro Calculator
Calculate your daily macronutrient targets for weight loss, muscle gain, or maintenance. Get personalized protein, carb, and fat goals.
Protein Calculator
Calculate your optimal daily protein intake based on weight, activity level, and fitness goal. Essential for muscle building and weight loss.
Lean Body Mass Calculator
Calculate your lean body mass (fat-free mass) based on height, weight, age, and gender. Track muscle mass and body composition.
Pace Calculator
Calculate running pace, time, and distance. Convert between min/mile and min/km. Plan your 5K, 10K, half marathon, and marathon race time.
Target Heart Rate Calculator
Calculate target heart rate zones for fat burning, cardio, and peak performance. Find max heart rate by age using Karvonen method.
One Rep Max Calculator
Calculate your one rep max (1RM) for bench press, squat, and deadlift. Use Epley, Brzycki, and other formulas to estimate max strength.
Pregnancy Calculator
Calculate your pregnancy due date, current week, and trimester. Enter your last menstrual period (LMP) or conception date.
Ovulation Calculator
Calculate your ovulation date and fertile window. Track your most fertile days for conception or natural family planning.
Period Calculator
Track your menstrual cycle and predict your next period. Calculate period dates for the next 12 months based on cycle length.
Calories Burned Calculator
Calculate calories burned during exercise and daily activities. Over 100 activities including running, cycling, swimming, and strength training.
Sleep Calculator
Calculate the best time to go to sleep or wake up based on sleep cycles. Avoid waking mid-cycle to feel refreshed and alert.
BAC Calculator
Estimate blood alcohol content (BAC) based on drinks consumed, body weight, time, and gender. Know when it's safe to drive.
About Our Fitness & Health
CalcProTool's fitness & health are designed for users in the USA, UK, Canada, Australia, and Europe. Every calculator uses verified formulas, updates in real time, and requires no registration. All 18 tools in this category are completely free.
Each calculator page includes a full explanation of the formula used, step-by-step guidance, and answers to frequently asked questions. Our tools are designed to help you make informed decisions with confidence.