3 subcategories · 12 calculators
Fitness
Performance, exercise output, heart-rate, and pacing calculators.
Subcategories
Browse fitness.
Choose a subcategory to narrow the health calculators in this branch.
Cardio & Conditioning
Exercise calorie burn and heart-rate training calculators.
7 calculators
Browse cardio & conditioningRunning & Pacing
Running pace, splits, and race target calculators.
4 calculators
Browse running & pacingStrength & Performance
Strength performance and rep-max calculators.
1 calculators
Browse strength & performancePopular tools
Start with a calculator from this branch.
These calculators sit inside the subcategories shown above.
Health / Fitness / Cardio & Conditioning
Calories Burned Calculator
Estimate calories burned by activity, duration, and body weight with quick MET-based exercise comparisons.
Health / Fitness / Cardio & Conditioning
Cycling Calorie Calculator
Estimate cycling calories from ride duration, body weight, and effort level, with hourly burn guidance.
Health / Fitness / Cardio & Conditioning
Heart Rate Zone Calculator
Calculate heart rate training zones from age and resting pulse, with recovery, aerobic, threshold, and high-intensity ranges.
Health / Fitness / Running & Pacing
Marathon Pace Calculator
Calculate marathon pace per kilometre and mile, then review checkpoint times from 5K through the finish.
Health / Fitness / Strength & Performance
One Rep Max Calculator
Estimate one-rep max from the weight and reps you completed, with common strength-formula comparisons and backoff loads.
Health / Fitness / Running & Pacing
Pace Calculator
Calculate running pace per kilometre or mile, average speed, and projected finish times for common race distances.