A 6-inch mobile phone means that the diagonal length of the screen is15.24cm.. If the ratio of the mobile phone screen is 16: 9, then the length of the mobile phone screen is 13.28 cm and the width is 7.47 cm.

Extended description:

1 ft = 12 inch = 0.3048m.

1 yard =3 feet =0.9 144 meters?

1 mile = 1760 yards = 1.6093 km area?

1 square inch =6.45 16 square centimeter