Calculator hub
Performance & Training
Dial in training intensity, speed, and workload with performance-focused tools.
Convert time, distance, and pace for running or walking.
Convert step count into miles and kilometers using stride length.
Estimate VO2 max from a 1.5-mile run or 12-minute Cooper test.
Estimate calories burned for common activities.
Estimate calories burned while walking based on weight and time.
Estimate calories burned on a treadmill from weight and workout time.
Estimate calories burned while jogging based on weight and time.
Estimate calories burned while running based on weight and time.
Estimate calories burned from step workouts using weight and time.
Estimate calories burned on a stair stepper based on weight and time.
Estimate calories burned on an elliptical based on weight and time.
Estimate cycling calories burned using weight and time.
Estimate stationary bike calories burned using weight and time.
Estimate recumbent bike calories burned using weight and time.
Estimate rowing machine calories burned based on weight and time.
Estimate swimming calories burned using weight and time.
Estimate jump rope calories burned using weight and time.
Estimate hiking calories burned using weight and time.
Estimate rucking calories burned using weight and time.
Estimate 1RM from reps and weight using multiple formulas.
Find training zones based on max or heart-rate reserve.