Start with more information. Is this on the 12th floor of a building or on the ground? If on the ground, what was the soil prep like? Is it prestressed? Is it double T? Is it poststressed? What is the composition of the concrete?
The simple answer: Hire a civil engineer to tell you.
A 6-inch concrete slab can typically support around 150 pounds per square foot.
On average, concrete weighs about 12.5 pounds per square foot per inch thick. This can vary based on the type and density of the concrete mix.
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square feet
A square foot of concrete has no weight because a square foot has no thickness. A cubic foot of concrete would weigh 65 Kg (143 lb) If you ASSUMED that concrete driveways, paths, etc. are all the same thickness , which they are NOT, then let us say they are 4 inch thick (10cm) In that case, then 1Square Ft of Concrete would weigh one third of the figure given above. Therefore it weighs 48 lb which is the same as 22 Kg.. Density of Concrete is 34.4 gram per cubic Inch or 1.216 ounce per cubic inch. (since you seem to be wanting to use Imperial measure)
One square inch is 1/144 of a square foot.1 square inch = 0.006944 square foot (rounded)1 square foot = 144 square inches
1 square inch = 0.006944 square foot (rounded) 1 square foot = 144 square inches
12*50/6=100 100 square yards
An inch is a unit of distance. A square foot is a unit of area. The two units are therefore incompatible.
The number of concrete tiles in a square depends on the size of the tiles. For example, if you have 12-inch by 12-inch tiles, one square foot (which is 12 inches by 12 inches) would require one tile. If the tiles are smaller, like 6-inch by 6-inch, you would need four tiles to cover one square foot. To determine the exact number, you can divide the area to be covered (in square feet) by the area of one tile (in square feet).
There is no universal formula to calculate area - it depends on the shape in question. 1 square inch = 1 inch * 1 inch = 1/12 foot * 1/12 foot = 1/12 * 1/12 square feet = 1/144 square feet. So to convert an area given in square inches to square feet, divide by 144.
Yes, a square foot is 12 times bigger than a square inch. You use this same conversion as if it were not squared; an inch is smaller than a foot.