It depends on how big or small the stones are. There are no agreed boundaries separating pebbles from stones, and stones from boulders.
Assuming the stones referred to are British stones, 13 kilograms is equivalent to approximately 2.05 stones.
The number of stones in 33 pounds is approximately 2.36 stones.
The number of stones in 1 kilogram is approximately 0.15747 stones.
There are 10.857 stones in 152 pounds.
To calculate the area of the patio in square inches, we first convert the dimensions to inches (12 ft = 144 in, 14 ft = 168 in). The patio's area is therefore 24,192 square inches. Each 8-inch paving stone covers 64 square inches, so divide the total area by 64 to find that you'll need 378 paving stones to pave the patio.
54
Assuming you don't want to cut and paste, then 4 x 11 = 44
This needs more information to supply a "best" answer. however.. assuming you mean 144 sq feet of patio and your stones are 16 inches x 20 inches. then accuratly you will need 66 stones. add at least 10% for cutting waste then i'd go buy 80 maybe 85.
7.1 Stones
To determine how many patio stones are needed, first convert the dimensions of one stone from inches to square feet. A 24-inch by 24-inch stone is 2 feet by 2 feet, giving it an area of 4 square feet. Dividing the total patio area of 480 square feet by the area of one stone (4 square feet) results in 120 stones needed for the patio.
13.7 stones
Approximately 10.24 stones.
stones has one syllable.
13.53 stones.
8.50354 stones.
Approximately 19.7 stones.
Approximately 10.75 stones.