18 feet is 5.4864 meters (says Google, just type "18 feet in meters") 20 feet is 6.09600 meters 5.4864 * 6.09600 = 33.4450944 meters squared (AKA square meters).
18'x20'=360 s.f. or 33.40 square meters
18 square meters is the same as 193.75 square feet.
14' x 13' = 182 square feet.
5 square yards.
I assume you are refering to roofing material, since a "square" in the roofing industry is equivalent to 100 square feet of material. 1 linear meter equals 3.28084 feet 1 square meter equals (3.28084 ft)2 or 10.7639 square feet Therefore, 80 square meters equals 80 x 10.7639 square feet or 809.93 square feet Since a roofing "square"=100 sqft, 80 square meters equals 8.0993 "squares" If you don't want to carry a calculator around in the field, just remember that: 1 square meter is a bit under 11 square feet. and that 1 square of roofing will cover almost 10 square meters (but not quite) Rod Burrows, PE
If your drum is a 55 gallon drum and your paint can cover 400 square feet per gallon then you may cover (one coat only) a square almost 150 by 150 feet.
16 feet long by 8 feet wide is 11.89 square meters.
650.321 square metres.
This room has an area of 11.71 (11.705783) square meters.
885 square feet is 82.2191904 square meters.
2,459 square feet = about 228.45 square meters.(228.448575 square meters).
565 square feet = about 52.5 square meters. (52.4902176 square meters).
There are approximately 505.90 square feet in 47 square meters.
About 13.4 square meters. (13.3780378 square meters)
929 square meters = about 10,000 square feet. (9,999.67278 square feet)
304 square meters is 3,272.23 square feet.
41 square meters is 441.32 square feet.
250 square meters is 2,690.98 square feet.