One foot usually refers to one square foot: 33.3cm × 33.3cm
So the simplest calculation method is length (cm) × width (cm) × 0.0009
For example, the calculation method for a four-foot paper is: 137×68×0.0009=8.3844 (approximately 8 square feet). The specifications of a four-foot paper vary by a fraction.
So usually people in the industry use 8 square feet. calculate.
my country's calligraphy and painting transactions have been priced in various ways since ancient times. In fact, the value of calligraphy and painting is not based on size.
The following are the general differences between several paper specifications
Xuan paper is generally divided into four feet, five feet, six feet, two feet, etc., and now there are special formats. The ruler used in calligraphy and painting calculations is different from the current measurement ruler. It refers to the commonly known Luban ruler invented by Lu Ban, the originator of Chinese carpenters. The size of the four-foot xuan is 68 x 137 centimeters. If it is split or cut in three, it is cut in half or evenly into three parts. Generally speaking, the whole four-foot piece is eight square feet, and if it is divided, it is four square feet. The vertical axis is centered on the vertical axis. Mainly, the center of the painting is four feet three feet or four feet six feet. It is generally calculated as three square feet or one and a half square feet. If it exceeds the specification, it will be calculated according to the actual area; the banner will be calculated according to the length. If the width is less than one foot, it will be calculated as one foot. If it exceeds one foot, it will be calculated as one foot. Calculated based on actual area; couplets are generally calculated based on width, which is basically the same as banner calculations, but the relationship between the number of words in couplets and price is that the more words there are, the higher the price; the horizontal length is about one foot, and the horizontal length is mostly within four feet (with some exceptions) ), the center of the painting is the horizontal length and the vertical length, and the horizontal length determines the size; the fan surface is generally calculated as one and a half square feet, the fan is calculated as two square feet, and the round fan is calculated according to the diameter; the hand scroll is calculated based on the horizontal length, the longer the horizontal length, the more square feet. big.
(01) Sketch 33×33cm 1 square foot
(02) Sketch 45×33cm 1.4 square feet
(03) Four feet three openings 68× 45cm 2.8 square feet
(04) Four feet square 34×68cm 2 square feet
(05) Four feet square 68×68cm 4 square feet
< p>(06) Four-foot split strips 34×136cm 4 square feet(07) Four-foot whole paper 68×136cm 8 square feet
(08) Five-foot whole paper Paper 153 x 84cm 11.5 square feet
(09) Six-foot full paper 96×178cm 15.6 square feet
(10) Eight-foot full paper 122×244cm 27 square feet
(11) Two feet of paper, 144×366cm, 48 square feet
(12) Six feet of paper, 200×498cm, 92 square feet
(01) Length*width* 9=square feet (Example: four feet of paper
1.36m×0.68m×9=8.32 square feet. Basis: 1 square meter is equal to 9 square feet, and the unit of calculation is meters.)
(02) Length×width/0.1089=square feet (example: four feet of whole paper
1.36m×0.68m/0.1089=8.4 square feet. Calculated in centimeters, based on: 33cm ×33cm=1089 square centimeters)