Divide cms by 2.54
1 inch = 25.4 mm
Feet divided by 5,280 = miles
3 feet equal 1 yard
Here it is: miles x 5,280 = feet
Multiply km by 3280.84
1 nautical mile = 6076.12 feet.
1 foot = 30.48 cm
1.1442192 kilometers.the formula is: divide the number of feet by 3280.84 to get the number of kilometers.
Square inches x 0.00694 = square feet
Square inches x 0.00694444 = square feet
You can use 1 foot = 304.8 millimeters