how many calories do you burn if you walk 20000 steps a day?
A 70 kg person burns about 120 cal per km in walking and it takes about 1500 steps per km. So the calory spent is a uniform metabolic spent say at 50 -70 calories per hour plus the walking calories of 500 calories per hour. If you walk 20000 steps a day, the calory spent on walking alone must be calculated.