... ( ft ) = 1000 m = 0.62 miles = 1609 m = 1.609 km 1 mi 1 micron ( μ ) Area 1 cm2 1 m2 1 hectare ( ha ) 1 km2 1,000,000 m2 = 247 acres = 0.39 miles2 1 mile2 ...
確定! 回上一頁