A cubic square inch is a measure in 5-D space. Since we all live in 3 spatial dimensions, it is an impossible measure.
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To calculate the cubic square inches of topsoil, you need to measure the length, width, and depth of the area you want to fill with topsoil. Then, multiply these dimensions together to get the volume in cubic inches. For example, if your area is 12 inches long, 6 inches wide, and you want to fill it with 3 inches of topsoil, the volume would be 12 x 6 x 3 = 216 cubic inches.
You would need about 1 cubic yard of topsoil to cover a 200 square foot area with 1 inch of soil.
You would need approximately 0.15 cubic feet of soil to fill a 6-inch pot. This is equivalent to about 4.24 liters of soil. It's important to leave some space at the top of the pot for watering and plant growth.
CONVERSION CHART1 Cubic yard 1 inch deep will cover 324 Square feet1 Cubic yard 2 inch deep will cover 162 Square feet1 Cubic yard 3 inch deep will cover 108 Square feet1 Cubic yard 4 inch deep will cover 81 Square feet1 Cubic yard 5 inch deep will cover 64 Square feet1 Cubic yard 6 inch deep will cover 54 Square feet(Length in Feet)( Width in Feet)*(Depth in Feet)=cubic feetExample: Say you have an area that is 12' x 18 '. You want to cover it with 6" of material.Multiply, 12' x 18' x *.5' to get 108 cubic feet. You see, 6" is .5 feet or 1/2 a foot.Now, devide 108 cubic feet by 27 cubic feet(1 yard) to get your total yardage at 4 yards.If you want a 3" cover you use 1/4' or .25'. A four inch cover is 1/3 foot or .33', etc.OR ---- Multiply your square footage by .003 for 1" coverage.0061 for a 2" coverage .0092 for a 3" coverage and.0123 for a 4" coverage. It takes 12.3 cubic yards of top soil to cover 1,000 square feet at 4". Hope this helps. ----
It depends on the density of the top soil. On average, 1 ton of top soil is approximately equal to 0.7647 cubic meters, which is equivalent to 764.7 liters.
A 40 lb bag of topsoil typically covers about 3-4 square feet at a depth of 1 inch. Since 1 cubic yard is equal to 27 cubic feet, you would need approximately 9-12 bags to make up 1 cubic yard of topsoil.