Fitness Calculators
23 free calculators
Calculate BMI, daily calories, body fat percentage, ideal weight, macros, and more to reach your health goals.
Sleep Calculator
Find the best times to wake up or go to sleep based on sleep cycles.
Use CalculatorBMI Calculator
Calculate your Body Mass Index based on height and weight.
Use CalculatorCalorie Calculator
Find your daily calorie needs based on age, activity, and goals.
Use CalculatorBody Fat Percentage Calculator
Estimate your body fat percentage using the US Navy method.
Use CalculatorIdeal Weight Calculator
Determine your ideal body weight using multiple formulas.
Use CalculatorTDEE Calculator
Calculate Total Daily Energy Expenditure and macro split.
Use CalculatorMacro Calculator
Calculate your daily macronutrient targets for cutting, bulking, or maintenance.
Use CalculatorProtein Intake Calculator
Find your optimal daily protein intake by body weight and goal.
Use CalculatorCalorie Deficit Calculator
Calculate your calorie deficit to lose 1 pound per week.
Use CalculatorLean Bulk Calculator
Calculate surplus calories and macros for lean muscle gain.
Use CalculatorOne Rep Max Calculator
Estimate your one-rep max from weight and reps performed.
Use CalculatorWater Intake Calculator
Calculate how much water you should drink daily.
Use CalculatorRunning Pace Calculator
Calculate your running pace per mile or per kilometer.
Use CalculatorHeart Rate Zone Calculator
Find your heart rate training zones using the Karvonen method.
Use CalculatorWaist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio and health risk level.
Use CalculatorVO2 Max Calculator
Estimate your VO2 max from a timed run or walk test.
Use CalculatorArmy Body Fat Calculator
Calculate body fat using the US Army tape measurement method.
Use CalculatorBench Press Standards Calculator
See how your bench press compares to strength standards.
Use CalculatorBAC Calculator
Estimate blood alcohol content based on drinks, weight, and time.
Use CalculatorSteps to Miles Calculator
Convert step count to miles or kilometers walked.
Use CalculatorRunning Pace Calculator
Calculate running pace, finish time, or distance for any race.
Use CalculatorOne Rep Max Calculator
Calculate your estimated one-rep max from sub-maximal lifts.
Use CalculatorHeart Rate Zone Calculator
Calculate training heart rate zones based on age and resting heart rate.
Use CalculatorDisclaimer: This calculator is provided for informational and educational purposes only. Results are estimates and should not be used as a substitute for professional advice. RediCalc.com makes no guarantees regarding the accuracy, completeness, or suitability of any calculations. Always consult a qualified professional before making financial, health, construction, or other important decisions.
By using this site, you agree to our Terms of Use and Privacy Policy. © 2026 RediCalc.com. All rights reserved.