Free Health & Fitness Calculators
Science-based tools to help you understand your body, optimize your nutrition, and reach your fitness goals. No sign-up required.
TDEE Calculator
Calculate your Total Daily Energy Expenditure based on your body and activity level.
BMI Calculator
Check your Body Mass Index and see where you fall on the health spectrum.
Calorie Deficit Calculator
Find the right calorie deficit to reach your weight loss goal safely.
Macro Calculator
Get personalized protein, carb, and fat targets for your goals.
Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy method.
Protein Calculator
Find your optimal daily protein intake based on body weight and goals.
Water Intake Calculator
Calculate how much water you should drink daily for optimal hydration.
BMR Calculator
Find your Basal Metabolic Rate using the Mifflin-St Jeor equation.
Ideal Weight Calculator
See your ideal weight range based on multiple scientific formulas.
Calories Burned Calculator
Estimate calories burned during any activity using MET values.
Why Use Our Fitness Calculators?
Whether you're trying to lose weight, build muscle, or simply live healthier, understanding your body's needs is the first step. Our free calculators give you the numbers you need to make informed decisions.
- 100% Free — No sign-up, no email, no hidden fees.
- Privacy First — All calculations run in your browser. Your data never leaves your device.
- Science-Based — Built on established formulas like Mifflin-St Jeor, U.S. Navy body fat, and MET values.
- Mobile Friendly — Use them on any device, anywhere.
Understanding Your Body's Needs
Everyone's body is different. Factors like age, weight, height, gender, and activity level all affect how many calories you burn and what nutrients you need. Our calculators take these factors into account to give you personalized estimates.
Start with the TDEE Calculator to understand your daily calorie needs, then use the Macro Calculator to break those calories into protein, carbs, and fat. From there, fine-tune with our other tools.
WiseClick provides educational estimates only and is not a substitute for professional medical advice. Always consult a healthcare provider before starting any diet or exercise program.
Disclaimer
WiseClick provides free online calculators for educational and estimation purposes only. All calculations are performed in your browser using standard formulas. Results are estimates and may not reflect your actual health status.
- Calculator results are not medical advice and should not be relied upon for health decisions.
- Individual needs vary based on factors not fully captured by our tools.
- Consult a qualified healthcare professional before starting any diet or exercise program.
By using this website, you acknowledge that WiseClick is not responsible for any decisions made based on calculator results. See our Terms of Service for details.