Enter a value and choose the units you are currently in. km/h will convert to m/s and m/s will convert to km/h.

To convert from metres per second into kilometres per hour we need to first
convert the metres into kilometres. We do this by dividing by 1000. then we
multiply by 60 to convert to per minute and then multiply by 60 again to convert
to per hour.

example

Convert 50m/s into km/h.

50 ÷ 1000 × 60 × 60 = 180km/h

To convert from kilometres per hour to metres per second we need to
first convert the kilometres into metres. We do this by multiplying by 1000.
Then we divide by 60 to convert to per minute and then divide by 60 again to
convert to per second.