Free Fitness Calculators
Calculate your BMI, BMR, TDEE, daily calorie needs, and bra size with our accurate, easy-to-use fitness calculators. Get instant results to help you achieve your health and fitness goals.
Choose Your Calculator
BMI Calculator
Calculate your Body Mass Index (BMI) to assess if your weight is healthy for your height.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) to understand your daily calorie needs at rest.
TDEE Calculator
Calculate your Total Daily Energy Expenditure (TDEE) based on your activity level.
Calorie Intake Calculator
Calculate your recommended daily calorie intake for weight loss, maintenance, or muscle gain.
Bra Size Calculator
Calculate your bra size accurately with band and cup size measurements for the perfect fit.
Why Choose Our Fitness Calculators?
Accurate Results
Based on scientifically proven formulas and algorithms for reliable calculations.
Instant Calculations
Get results immediately with our fast, client-side calculations - no waiting required.
Mobile Friendly
Optimized for all devices - use our calculators on desktop, tablet, or mobile.
Understanding Your Fitness Metrics
Our comprehensive suite of fitness calculators helps you understand key health metrics that are essential for achieving your fitness goals. Whether you're looking to lose weight, build muscle, or maintain a healthy lifestyle, these calculations provide the foundation for your nutrition and exercise planning.
BMI (Body Mass Index) is a simple calculation that uses your height and weight to estimate body fat. While it's a useful screening tool, it doesn't account for muscle mass, bone density, or overall body composition.
BMR (Basal Metabolic Rate) represents the number of calories your body burns at rest to maintain basic life functions like breathing, circulation, and cell production. This is your body's minimum calorie requirement.
TDEE (Total Daily Energy Expenditure) is your total daily calorie burn, including BMR plus calories burned through physical activity and digestion. This is crucial for determining your daily calorie needs.
Use these calculators as tools to guide your nutrition and fitness decisions, but always consult with healthcare professionals for personalized advice, especially if you have underlying health conditions.