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CONCRETE CALCULATOR FORMULA Measure the length and width that you’d like to cover. Multiply the length by the width to determine square footage. Convert the thickness from inches to feet. Multiply the thickness in feet by the square footage to determine cubic feet.
What is the formula for figuring out concrete?
Use the formula. Calculating the volume for concrete requires using three dimensions: length times width (which is area) times the height (thickness) or L x W x H. If you are using feet as your standard unit of measurement, this formula will give you the volume of concrete in cubic feet.
How do I figure how much concrete I need?
Multiply the width times the length times the height (W × L × H), or use our volume calculator to find the cubic feet. Convert the volume to cubic yards from cubic feet. To do so, divide the cubic footage by 27 to get the yards of concrete needed.
How many cubic feet is an 80lb bag of concrete?
15 cubic feet for every 20 pounds of mix, so a 40-pound bag yields . 30 cubic feet, 60 pounds of concrete mix yields . 45 cubic feet and an 80-pound bag yields . 60 cubic feet.
How much concrete do I need for a 10×10 slab?
The amount you will need for a 10 x 10 slab is 1.3 cubic yards, we always add an extra 10% to allow for any slab depth variations or spills that may occur.
How do u figure out cubic feet?
Multiply the length, width and height and divide the resulting number by 1,728. This is the container’s volume in cubic feet.
How many square feet is a yard of concrete 6 inches thick?
One Cubic Yard of Concrete: 4-inches thick – covers 81 square feet. 5-inches thick – covers 65 square feet. 6-inches thick – covers 54 square feet.
How many yards of concrete do I need for a 24×24 slab?
For example, for a concrete slab that is 24′ X 24′ X 4”, simply enter 4 in the Thickness/Depth field, 24 in the Width field, and 24 in the Length field. Click “Calculate”. Your answer should be 7.11 yards. Note: The Concrete Volume Calculator can also be used to determine yardage for aggregate products.
How much ballast and cement do I need calculator?
ballast calculator for concrete:-quantity of ballast for 1m3 concrete is calculated as follows, ballast quantity = 5/6 × 1m3 = 0.833 m3, we know weight of ballast = volume × density, so weight of ballast in kg = 0.833m3 × 1750kg/m3 = 1458kg, if weight of ballast bag is 25kg, then number of bags of 25kg ballast as 1458/.
How many bags of concrete do I need for 100 square feet?
Ans. :- 7.6 no of cement bags (381.30 kgs) are required for 100 sq ft rcc roof slab 4 inch thick m20 grade concrete. Ans. :- 7.6 bags (381.30 kgs), 9.5 bags (476.10 kgs) & 11.4 bags ( 570.8 kgs) cement are required for 100 sq ft rcc roof slab 4 inch, 5inch & 6 inch thick respectively in m20 grade of concrete.
How many bags of concrete do I need for 3.5 cubic feet?
I have a mixer that is advertised as being 3.5 cubic feet. My experience is that this mixer will handle up to two 60 pound bags or one and a half 80 bags at a time; anything more, and mix will spill out of the mixer when it is trying to mix the mix. 120 pounds of concrete mix makes about 0.9 cubic feet of concrete.
How many bags of concrete do I need for a 4×8 slab?
As per calculation, for a 4×8 slab at 4 inch thick, generally you will need approximately either 23 bags of 60lb or 18 bags of 80lb of premixed concrete, at 5 inches thick slab, either 29 bags of 60lb or 23 bags of 80lb premixed concrete are required, while at 6 inches thick slab, either 35 bags of 60lb or 27 bags of.
How many cubic feet are in a 60 pound bag of concrete?
60 lb bag of concrete is mixture of cement sand and gravel in dry condition, generally, there are 0.45 cubic feet in a 60 pounds bag of concrete.
How much does an 80 pound bag of concrete cover?
80 lb bag of concrete cubic feet 80 lb bag of concrete yields 0.60 cubic feet which is approximately around 0.0222 cubic yards that will cover around 3.6 sq ft area up to standard depth of 2 inch excavation or backfills, and for 1 cubic feet of landfill you will need 1.66 bags of 80 lb concrete.
How much concrete do you need for a 12×12 slab?
Regarding this, “how many bags of concrete do I need for a 12×12 slab?”, at 4 inches thick, generally you will need approximately either 104 bags of 60lb or 80 bags of 80lb of premixed concrete for a 12×12 slab, at 5 inches thick slab, either 131 bags of 60lb or 100 bags of 80lb premixed concrete are required, while at.
How many bags of concrete do I need for a 10×8 slab?
Regarding this, “how many bags of concrete do I need for a 10×8 slab?”, at 4 inches thick, generally you will need approximately either 58 bags of 60lb or 45 bags of 80lb of premixed concrete for a 10×8 slab, at 5 inches thick slab, either 73 bags of 60lb or 56 bags of 80lb premixed concrete are required, while at 6.
How tall is 4 cubic feet?
ENDMEMO 1 cubic feet = 1 feet 1 cubic feet 4 cubic feet = 1.5874 feet 64 cubic feet 5 cubic feet = 1.71 feet 125 cubic feet 6 cubic feet = 1.8171 feet 216 cubic feet 7 cubic feet = 1.9129 feet 343 cubic feet.
How many cubic feet is 24 square feet?
Cubic feet to Square feet Calculator 1 cubic feet = 1 ft 2 1 ft 2 = 23 cubic feet = 8.0876 ft 2 23 ft 2 = 24 cubic feet = 8.3203 ft 2 24 ft 2 = 25 cubic feet = 8.5499 ft 2 25 ft 2 = 26 cubic feet = 8.7764 ft 2 26 ft 2 =.
How do you calculate square feet to cubic feet?
Cubic feet = square feet × depth. So: 20 × 0.25 = 5.
