Conversion

Area
1 sq. inch (in)2645.16 sq. millimeters (mm2)
1 sq. inch (in)26.4516 sq. centimeters (cm2)
1 sq. foot (ft)2929.0304 sq. centimeters (cm2)
1 sq. millimeter (mm)20.00155 sq. inch (in2)
1 sq. centimeter (cm)20.1550 sq. inch (in2)
1 sq. meter (m)210.7639 sq. ft. (ft2)
1 sq. meter (m)21.19599 sq. yard (yd2)

Length
1 inch (in)25.4 millimeters
1 inch (in)2.54 centimeters
1 centimeter0.394 inch
1 foot0.3048 meter
1 meter3.28 feet

Liquid Measure
1 pint0.473 liter
1 quart0.46 liter
1 gallon8 pints = 3.785 liters

Area coverage of tiles per square meter

Tile Size (Metric) Tile Size (English) Number of Tiles per sq. m.
20x20 8x8 25 pcs.
20x25 8x10 20 pcs.
30x30 12x12 11 pcs.
33x33 13x13 9.25 pcs.
40x40 16x16 6.25 pcs.
50x50 18x18 4 pcs.
60x60 24x24 2.7 pcs.