Each km (kilometer) is the same as about 0.621 mile.
A long time.
Depends on how fast you walk.
Around 8 minutes it takes to walk 0.8 km
about 50 mintues
half a second if you walk fast
2 km = 1.2 miles. At a normal pace it should take about 20-25 minutes to walk that far.
5 hours.
9/6 hours To walk 9 km at 6 km/hr will take one and one half hours.
If you walk with the speed of 6 km per hour then it will take 25 minutes
it depends if you have someone with you and your mode of transport
36 hours
He needs to walk for 18 seconds to travel 5 metres at 1 km/hr.