1 acre is 4046.873 square metres
one kilometer
There are 150 centimeters in 1.5 meteres.
430cm
1.64 m
400
3,000' is 914.4m
3004 because there are 1000 meteres in a km
3,000,000 m
15 and a half kilometers
1,000 metres!
About 12.7 meters in 500 inches.
I think 90,000 but I am not sure.