Decide which metric unit is most suitable to convert your imperial measurements into. Convert inches into centimeters or millimeters, feet into centimeters, yards into meters and miles into kilometers.
Convert inches into millimeters by multiplying the number of inches by 25.4. Convert inches into centimeters by multiplying your figure by 2.54. There are 25.4 mm in 1 inch, 2.54 cm in 1 inch, 0.0394 inches in 1 mm and 0.394 inches in 1 cm.
Convert feet into centimeters by multiplying the number of feet by 30.48. There are 30.48 cm in 1 foot and 0.0328 feet in 1 cm.
Convert yards into meters by multiplying the number of yards by 0.9144. There are 0.9144 meters in 1 yard and 1.0936 yards in 1 meter.
Convert miles into kilometers by multiplying the number of miles by 1.609. There are 1.609 km in 1 mile and 0.6214 miles in 1 km.