Fitness & Exercise Calculators
Explore 147 professional-grade calculators for fitness & exercise.
Calories Burned Calculator
Estimate calories burned during various exercises and activities.
Calorie Deficit Calculator
Calculate the daily calorie deficit needed to lose a specific amount of weight per week.
Calories Burned Walking Calculator
Estimate calories burned walking based on distance, pace, and body weight.
GFR Calculator
Estimate glomerular filtration rate for kidney function assessment.
BAC Calculator
Estimate blood alcohol content based on drinks, weight, and time.
Target Heart Rate Calculator
Calculate target heart rate zones for optimal exercise intensity.
One Rep Max Calculator
Calculate your estimated one-rep max for any lift.
Sleep Calculator
Calculate optimal bedtime and wake time based on sleep cycles.
Pace Calculator
Calculate running or walking pace, speed, and finish time.
VO2 Max Calculator
Estimate your maximum oxygen uptake and cardiovascular fitness.
Heart Rate Recovery Calculator
Measure cardiovascular fitness by tracking how fast your heart rate drops after exercise.
Olympic Lift Percentage Calculator
Calculate Olympic Lift Percentage Calculator online with our free tool.
Repetition Max Percentage Calculator
Calculate Repetition Max Percentage Calculator online with our free tool.
Walk vs Run Calorie Comparison Calculator
Calculate walk vs run calorie comparison calculator online with our free tool.
Elliptical Calorie Calculator
Calculate elliptical calorie calculator online with our free tool.
Yoga Calorie Calculator
Calculate yoga calorie calculator online with our free tool.
Pilates Calorie Calculator
Calculate pilates calorie calculator online with our free tool.
Circuit Training Calorie Calculator
Calculate circuit training calorie calculator online with our free tool.
Dancing Calorie Calculator
Calculate dancing calorie calculator online with our free tool.
Rock Climbing Calorie Calculator
Calculate rock climbing calorie calculator online with our free tool.
Gym Session Calorie Burn Calculator
Calculate Gym Session Calorie Burn Calculator online with our free tool.
Steps-to-Calories Calculator
Calculate steps-to-calories calculator online with our free tool.
Rowing Calorie Calculator
Calculate rowing calorie calculator online with our free tool.
Jump Rope Calorie Calculator
Calculate jump rope calorie calculator online with our free tool.
Boxing Calorie Calculator
Calculate boxing calorie calculator online with our free tool.
Martial Arts Calorie Calculator
Calculate martial arts calorie calculator online with our free tool.
Weightlifting Session Calorie Calculator
Calculate weightlifting session calorie calculator online with our free tool.
CrossFit WOD Calorie Calculator
Calculate crossfit wod calorie calculator online with our free tool.
Tabata Calorie Calculator
Calculate tabata calorie calculator online with our free tool.
Hiking Calorie Calculator
Calculate hiking calorie calculator online with our free tool.
Athlete BMI Calculator
Calculate Athlete BMI Calculator online with our free tool.
HIIT Calorie Burn Calculator
Calculate HIIT Calorie Burn Calculator online with our free tool.
METs-Based Calorie Burn Calculator
Calculate METs-Based Calorie Burn Calculator online with our free tool.
Step Count to Calorie Burn Calculator
Calculate Step Count to Calorie Burn Calculator online with our free tool.
Floors-Climbed Calorie Calculator
Calculate floors-climbed calorie calculator online with our free tool.
Stair Climbing Calorie Calculator
Calculate stair climbing calorie calculator online with our free tool.
Cardio vs Weights Calorie Calculator
Calculate cardio vs weights calorie calculator online with our free tool.
Hot Yoga Calorie Calculator
Calculate hot yoga calorie calculator online with our free tool.
Water Aerobics Calorie Calculator
Calculate water aerobics calorie calculator online with our free tool.
Sport-Specific Calorie Calculator
Calculate sport-specific calorie calculator online with our free tool.
Cardio vs Strength Calorie Comparison Calculator
Calculate Cardio vs Strength Calorie Comparison Calculator online with our free tool.
Sedentary Time Cost Calculator
Calculate sedentary time cost calculator online with our free tool.
Cycling Calorie Calculator
Estimate calories burned during cycling based on speed, duration, and terrain.
Workout Calorie Calculator
Estimate total calories burned during a full workout session by exercise type.
HIIT Calorie Calculator
Estimate calories burned during high-intensity interval training sessions.
Swimming Calorie Calculator
Estimate calories burned swimming different strokes at various intensities.
Fitness Age Estimator
Calculate Fitness Age Estimator online with our free tool.
Functional Fitness Age Calculator
Calculate Functional Fitness Age Calculator online with our free tool.
Training Volume to Recovery Ratio Calculator
Calculate Training Volume to Recovery Ratio Calculator online with our free tool.
ATP-CP Energy System Duration Calculator
Calculate ATP-CP Energy System Duration Calculator online with our free tool.
High-Intensity Interval Training (HIIT) Work-Rest Ratio Calculator
Calculate High-Intensity Interval Training (HIIT) Work-Rest Ratio Calculator online with our free tool.
Activity Points Calculator
Calculate activity points calculator online with our free tool.
Running Economy Calculator
Calculate running economy calculator online with our free tool.
Grip Strength Percentile Calculator
Calculate grip strength percentile calculator online with our free tool.
Deload Week Timing Calculator
Calculate deload week timing calculator online with our free tool.
Training Frequency Calculator
Calculate training frequency calculator online with our free tool.
Exercise Heart Rate Reserve Calculator
Calculate exercise heart rate reserve calculator online with our free tool.
Daily Step Goal Calculator
Calculate daily step goal calculator online with our free tool.
Exercise Adherence Score Calculator
Calculate exercise adherence score calculator online with our free tool.
1-Rep Max (1RM) Calculator
Calculate 1-Rep Max (1RM) Calculator online with our free tool.
Aerobic vs Anaerobic Threshold Calculator
Calculate Aerobic vs Anaerobic Threshold Calculator online with our free tool.
Balance Assessment Score Calculator
Calculate Balance Assessment Score Calculator online with our free tool.
Body Recomposition Progress Calculator
Calculate Body Recomposition Progress Calculator online with our free tool.
Caloric Expenditure from Exercise Calculator
Calculate Caloric Expenditure from Exercise Calculator online with our free tool.
Exercise Adherence Probability Calculator
Calculate Exercise Adherence Probability Calculator online with our free tool.
Fat Burning Heart Rate Zone Calculator
Calculate Fat Burning Heart Rate Zone Calculator online with our free tool.
Heart Rate Training Zone Calculator
Calculate Heart Rate Training Zone Calculator online with our free tool.
Lactate Threshold Heart Rate Estimator
Calculate Lactate Threshold Heart Rate Estimator online with our free tool.
Lift Progression Rate Calculator
Calculate Lift Progression Rate Calculator online with our free tool.
Maffetone Method Heart Rate Calculator
Calculate Maffetone Method Heart Rate Calculator online with our free tool.
Maximal Heart Rate Calculator
Calculate Maximal Heart Rate Calculator online with our free tool.
Muscle Hypertrophy Stimulus Calculator
Calculate Muscle Hypertrophy Stimulus Calculator online with our free tool.
Performance Weight Category Calculator
Calculate Performance Weight Category Calculator online with our free tool.
Power Output Calculator
Calculate Power Output Calculator online with our free tool.
Predicted 5K Time from VO2 Max Calculator
Calculate Predicted 5K Time from VO2 Max Calculator online with our free tool.
Swim Pace Calculator
Calculate Swim Pace Calculator online with our free tool.
Training Age Calculator
Calculate Training Age Calculator online with our free tool.
Warm-Up Set Weight Calculator
Calculate Warm-Up Set Weight Calculator online with our free tool.
Weight Lifted Total Tonnage Calculator
Calculate Weight Lifted Total Tonnage Calculator online with our free tool.
Muscle Gain Calculator
Calculate muscle gain calculator online with our free tool.
Vertical Jump Height Calculator
Calculate vertical jump height calculator online with our free tool.
Max Push-Up Capacity Calculator
Calculate max push-up capacity calculator online with our free tool.
Max Pull-Up Capacity Calculator
Calculate max pull-up capacity calculator online with our free tool.
Relative Strength Index Calculator
Calculate relative strength index calculator online with our free tool.
Progressive Overload Calculator
Calculate progressive overload calculator online with our free tool.
Resistance Training Volume Calculator
Calculate resistance training volume calculator online with our free tool.
Functional Movement Screen Score Calculator
Calculate functional movement screen score calculator online with our free tool.
Exercise Intensity Zone Calculator
Calculate exercise intensity zone calculator online with our free tool.
Training Age Adjustment Calculator
Calculate training age adjustment calculator online with our free tool.
Muscle Group Recovery Time Calculator
Calculate muscle group recovery time calculator online with our free tool.
Active Recovery Heart Rate Calculator
Calculate Active Recovery Heart Rate Calculator online with our free tool.
Aerobic Base Training Zone Calculator
Calculate Aerobic Base Training Zone Calculator online with our free tool.
Bench Press Strength Standard Calculator
Calculate Bench Press Strength Standard Calculator online with our free tool.
Deadlift Strength Standard Calculator
Calculate Deadlift Strength Standard Calculator online with our free tool.
Exercise Energy System Contribution Calculator
Calculate Exercise Energy System Contribution Calculator online with our free tool.
Exercise Volume Load Calculator
Calculate Exercise Volume Load Calculator online with our free tool.
FITT Principle Calculator
Calculate FITT Principle Calculator online with our free tool.
Jump Height Calculator
Calculate Jump Height Calculator online with our free tool.
Metabolic Equivalent (MET) Score Calculator
Calculate Metabolic Equivalent (MET) Score Calculator online with our free tool.
Muscle Fiber Composition Estimator
Calculate Muscle Fiber Composition Estimator online with our free tool.
Muscle Growth Potential Calculator
Calculate Muscle Growth Potential Calculator online with our free tool.
Overhead Press Strength Standard Calculator
Calculate Overhead Press Strength Standard Calculator online with our free tool.
Perceived Exertion to Heart Rate Calculator
Calculate Perceived Exertion to Heart Rate Calculator online with our free tool.
Periodization Volume Calculator
Calculate Periodization Volume Calculator online with our free tool.
Predicted Marathon Time Calculator
Calculate Predicted Marathon Time Calculator online with our free tool.
Race Time Prediction Calculator
Calculate Race Time Prediction Calculator online with our free tool.
Rate of Perceived Exertion (RPE) Training Calculator
Calculate Rate of Perceived Exertion (RPE) Training Calculator online with our free tool.
Running Economy Estimator
Calculate Running Economy Estimator online with our free tool.
Sprint Time to Speed Calculator
Calculate Sprint Time to Speed Calculator online with our free tool.
Squat Strength Standard Calculator
Calculate Squat Strength Standard Calculator online with our free tool.
Strength Training Age Periodization Calculator
Calculate Strength Training Age Periodization Calculator online with our free tool.
Swimming SWOLF Score Calculator
Calculate Swimming SWOLF Score Calculator online with our free tool.
Target Repetition Range Calculator
Calculate Target Repetition Range Calculator online with our free tool.
Treadmill Speed to Pace Calculator
Calculate Treadmill Speed to Pace Calculator online with our free tool.
Triathlon Split Time Calculator
Calculate Triathlon Split Time Calculator online with our free tool.
Wingate Power Output Calculator
Calculate Wingate Power Output Calculator online with our free tool.
Cutting Phase Calculator
Calculate cutting phase calculator online with our free tool.
Bulking Phase Calculator
Calculate bulking phase calculator online with our free tool.
Fat-Burning Zone Calculator
Calculate fat-burning zone calculator online with our free tool.
Heart Rate Recovery Score Calculator
Calculate heart rate recovery score calculator online with our free tool.
Workout Volume Load Calculator
Calculate workout volume load calculator online with our free tool.
Lactate Threshold Estimator
Calculate lactate threshold estimator online with our free tool.
Anaerobic Threshold Calculator
Calculate anaerobic threshold calculator online with our free tool.
Training Load Calculator
Calculate training load calculator online with our free tool.
Recovery Time Calculator
Calculate recovery time calculator online with our free tool.
Periodization Calculator
Calculate periodization calculator online with our free tool.
Weekly Training Volume Calculator
Calculate weekly training volume calculator online with our free tool.
Aerobic Capacity (VO2 Max) Estimator
Calculate Aerobic Capacity (VO2 Max) Estimator online with our free tool.
Body Composition Change Rate Calculator
Calculate Body Composition Change Rate Calculator online with our free tool.
Cycling FTP Estimator
Calculate Cycling FTP Estimator online with our free tool.
Deload Frequency Calculator
Calculate Deload Frequency Calculator online with our free tool.
EPOC (Excess Post-Exercise Oxygen Consumption) Calculator
Calculate EPOC (Excess Post-Exercise Oxygen Consumption) Calculator online with our free tool.
Flexibility Test Score Calculator
Calculate Flexibility Test Score Calculator online with our free tool.
Karvonen Heart Rate Calculator
Calculate Karvonen Heart Rate Calculator online with our free tool.
Lean Mass Gain Rate Calculator
Calculate Lean Mass Gain Rate Calculator online with our free tool.
One-Mile Run VO2 Max Estimator
Calculate One-Mile Run VO2 Max Estimator online with our free tool.
Pull-Up Strength Calculator
Calculate Pull-Up Strength Calculator online with our free tool.
Resting Heart Rate Health Score Calculator
Calculate Resting Heart Rate Health Score Calculator online with our free tool.
Rowing Watt-to-Pace Calculator
Calculate Rowing Watt-to-Pace Calculator online with our free tool.
Running Cadence Optimization Calculator
Calculate Running Cadence Optimization Calculator online with our free tool.
Strength Level Percentile Calculator
Calculate Strength Level Percentile Calculator online with our free tool.
Training Frequency Optimizer Calculator
Calculate Training Frequency Optimizer Calculator online with our free tool.
VO2 Max from Step Test Calculator
Calculate VO2 Max from Step Test Calculator online with our free tool.
Vertical Jump Power Calculator
Calculate Vertical Jump Power Calculator online with our free tool.
Active Metabolic Rate Calculator
Calculate AMR — total daily calories burned including all physical activities.
METs Activity Calculator
Calculate energy expenditure in METs for hundreds of physical activities.
Marathon Training Pace Calculator
Calculate target training paces for long runs, tempo runs, and intervals.