You can use
1 foot = 304.8 millimeters
feet = cms ÷ 30.48
Feet divided by 5,280 = miles
Here it is: miles x 5,280 = feet
3 feet equal 1 yard
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
f = 5280m Multiply the number of miles by 5280.
You cannot convert area into volume.