An inch? 2.5 x 3.6 cm 5x8 inches
Two inches? 3.4 x 5.2 cm? 5x9 inches
Three inches? 5.5 x 8.4 cm? 5x 10 inch
Five inches, 3.5 x 5cm? 5x 12 inch
6 inches 4x 6 cm 6x9 inches
Seven inches 5 x 7cm? 6x 10 inch
Eight inches 6 x 8cm? 6x 12 inch
10 inch 8 x 10cm 6x 14 inch.
Twelve inches? 10x12cm8.5x12 inch.
Fourteen inches? 10x14cm10x14.5 inches.
Sixteen inches? 12x16cm12x17 inch.
Eighteen inches? 12x18cm12x17.5 inches.
/kloc-within 0/8 inch, the number of inches shall prevail; over 20 inches, the number of centimeters shall prevail. Remarks: 1 inch = 2.54cm
Size (pinyin: chǐ cùn) literally refers to distance or quantity.
Origin of foot: Foot (12 inch,13 yard, 0.3048m) means "foot" in English. In fact, a foot is the length of an adult man's foot. /kloc-In the 6th century, the Germans solved this matter in a very simple way. On a Sunday, they let 16 men who came out of the church stand together, and then add up the length of their left feet and divide them by 16 to get an average foot length. This is the foot used now.
Origin of inch: inch means thumb in Dutch, and one inch is the length of thumb. Of course, the length of a person's thumb is also different. /kloc-In the 4th century, King Edward II of England promulgated the "standard legal inch". It is stipulated that the three largest wheat grains should be selected from the middle of the barley ear and arranged in a row one inch in length.
Size conversion relationship:
1m = 1m =3 city feet =3.2808 feet.
1 decimeter = 1 square inch =0. 1 meter =3 city inches.
1 cm = 1 cm =0.3937 inch.
That is,1mm = 0.1cm = 0.01cm = 0.001m.