Fitness calculators for your next question.
Choose a tool for your activity, distance or body measurements. Every estimate comes with its method, worked examples and useful context.
Walking & steps
5 toolsWalking calories
Turn your everyday walk into a little more understanding. Estimate calories burned from your weight, time and pace.
Treadmill calories
See how speed, time and incline change a treadmill walk. Get total and active calorie estimates with the assumptions in view.
Steps to calories
Translate walking steps into estimated distance, time and energy. Use your own step length for a more relevant estimate.
Steps to miles
Convert steps to miles or kilometers using your step length, or switch to miles-to-steps mode. See your estimated steps per mile.
Walking time
Estimate how long it takes to walk a mile, 5 km or your own route. Enter distance, average speed and stops to calculate moving and total time.
Running & cardio
7 toolsRunning calories
Estimate calories burned running from body weight, moving time and pace. Compare total and active calories with transparent MET calculations.
Running pace
Calculate running pace per mile or kilometer from time and distance. Convert pace to speed and compare 5K, 10K, half-marathon and marathon times.
Cycling calories
Calculate estimated calories burned biking outdoors using weight, riding time and speed range. See active and total energy for your ride.
Stationary bike calories
Estimate exercise bike calories using body weight, workout time and a wattage category or spin-class setting. Separate active from total calories.
Swimming calories
Estimate calories burned swimming by body weight, swim time, stroke and effort. Compare freestyle, breaststroke, backstroke and butterfly.
Rowing calories
Calculate estimated rowing machine calories from body weight, working time and watts. See total and active energy for an indoor rowing session.
Elliptical calories
Estimate calories burned on an elliptical trainer from weight, duration and moderate or vigorous effort. Compare a 20-, 30- or 60-minute session.
Body & nutrition
3 toolsDaily calorie needs
Estimate resting energy and daily maintenance calories. Choose an activity assumption and see exactly how it changes the result.
Body fat calculator
Estimate body-fat percentage from tape measurements using the historical Navy circumference method. See what the number can and cannot tell you.
Lean body mass
Calculate estimated lean mass and fat mass from your body weight and body-fat percentage. Simple arithmetic, with useful context.