How many bags of concrete do you need | how many bags of concrete do i need | how do i figure out how many bags of concrete i need | how many bags of concrete do i need for 1 yard.

In US, concrete are sold in bag concrete for small projects, popularly known as premix bag. Premix bag of concrete are available in many different size and weight, larger size of bagged concrete are available in 90lb (pound) and 80lb (pound) concrete, medium size available in 60lb (pound) concrete and smaller size is 50lb (pound) and 40lb (pound) concrete.

Premixed bag of concrete is the mixture of Portland cement, sand (fine aggregates), gravel (coarse aggregate), and different types of approved admixture or ingredients. A 50 pound concrete is fast setting concrete.

Premixed concrete bags are used for driveways, patios, foundations walls and footings, curbs, stairs and structural applications and also great for setting footings, pouring slabs and anchoring posts and poles.

In this article you know about “how many bags of concrete do you need”, which will help you making a rough estimate how many bags of concrete do i need. Here we discussed about how to figure out how many bags of concrete do i need.

Quikrete or Sakrete 80lb (pounds) bags concrete Mix can be used for building or repairing foundation walls, sidewalks, curbs, steps and ramps and for setting posts. This concrete mix is designed for pouring concrete 2″ to 4″ thick or more and is easy to use by simply adding water.

50lb (pounds) bags of concrete mix is ideal for both structural and non structural application for 2 inch thick or more, 50lb bag of Concrete Mix can be used for building or repairing foundation walls, fence post, sidewalks, curbs, steps and ramps and for setting posts and others concrete structure like, footing, slab & beam.

What is a cubic yard of concrete?, A cubic yard of concrete is unit of measurement of volume, which is visually represented by 3 feet long by 3 feet wide by 3 feet depth, so, 1 cubic yard of concrete is 3’×3’× 3′ = 27 cubic feet, so 1 cubic yard of concrete is equivalent to 27 cubic feet.

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**How many bags of concrete do you need**

A cubic yard of solid slab of concrete, which visually is 3 feet long by 3 feet wide and by 3 feet height, which is equal as 27 cubic feet when multiply length by width by height = 3’×3’×3′ = 27 cubic feet.

To calculate number of bags of concrete do you need, divide the total yards of concrete needed by bags yields in yards. To determine how many bags of concrete you will need for one yard, divide the one cubic yards needed by the yield.

**Formula for No. of bags of concrete do you need = total cubic yards ÷ bags yields in yards**

To determine yields of premixed concrete bag (80lb, 90lb, 60lb, 50lb, and 40lb) in yards, divide the weight of one bag of concrete in pounds by 3600 (because one yard of concrete weighs about 3600 pounds).

**Formula for calculating yields of premixed bag = Weight of one bag of concrete ÷ 3600**

● 40 pound bag yields 0.011 cubic yards, yields = 40÷3600 = 0.011 yards

● 50 pound bag yields 0.0138 cubic yards, yields = 50÷3600 = 0.0138 yards

● 60 pound bag yields 0.017 cubic yards, yields = 60÷3600 = 0.017 yards

● 80 pound bag yields 0.022 cubic yards, yields = 80÷3600 = 0.022 yards

● 90 pound bag yields 0.025 cubic yards, yields = 90÷3600 = 0.025 yards.

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**Bagged concrete for 1 yard:**– formula for No. of bags of concrete for 1 yard = 1 cubic yard ÷ yields, thus, No. of 80lb bags = 1/0.022 = 45, No. of 60lb bags = 1/0.017 = 60, No. of 40lb bags = 1/0.011 = 90, No. of 50lb bags = 1/0.0138 = 72, and No. of 90lb bags = 1/0.025 = 40 bags.

**How many bags of concrete do you need for 1 yard?,** you will need approximately either Sixty of 60 lb, or Forty of 90 lb, or Forty five of 80 lb, or Seventy two of 50 lb, or Ninety of 40 lb bags of concrete for 1 yard. Thus, the amount of bags it takes to make one yard of concrete is either 90 of 40lb, or 45 of 80lb, or 60 of 60lb bags of concrete.

**How many bags of concrete do you need?,** Formula for No. of bags of concrete = Total cubic yards ÷ Yields. To calculate number of bags of concrete do you need, divide the total yards of concrete needed by bags yields in yards. For example: You will need approximately either 180 of 40lb, or 90 of 80lb, or 120 of 60lb, or 144 of 50lb, or 80 of 90lb bags of concrete for 2 yards.

**How do i figure out how many bags of concrete i need**

To figure out how many number of bags of concrete i need, multiply length by width, and then by thickness in feet. Multiply the resulting number by 0.037 to find cubic yards. Then divide the total yards of concrete needed by bags yields in yards. Formula for No. of bags of concrete you need= Total cubic yards ÷ Yields per bag in yards.

**Steps to figure out how many number of bags of concrete you need are following:-**

1) Square footage of concrete slab = Length × Width

2) Thickness in feet = Thickness in inches ÷ 12

3) Cubic feet of concrete = Square footage × Thickness in feet

4) Cubic yards of concrete = Cubic feet of concrete × 0.037

5) No. of bags of concrete you need = Total yards of concrete ÷ Yields.

**For example:-** To figure out how many bags of concrete do i need for 10×10 slab at 4 inches thick. Ans. maths calculation: 1) Square footage = 10’×10′ = 100 sq ft, 2) 4″ in feet = 4/12 = 0.33′, 3) Total cubic feet = 100×0.33 = 33 cubic feet, 4) Total cubic yards = 33×0.037 = 1.22 yards, 5) No. of 80lb bags = 1.22 ÷ 0.022 = 56 bags, or No. of 60lb bags = 1.22 ÷ 0.017 = 72 bags, or No. of 40lb bags = 1.22 ÷ 0.011 = 110 bags.

You will need approximately Fifty six of 80lb (pounds), or Seventy two of 60lb, or One hundred ten of 40lb bags of concrete for 10 by 10 solid slab at suggested depth of 4 inches thick.

**How many bags of concrete do i need for 4×4 slab**

Steps to calculate number of bags of concrete you need for 4 by 4 slab are following:

1) Square footage = 4’×4′ = 16 sq ft,

2) 4″ in feet = 4/12 = 0.33′,

3) Total cubic feet = 16×0.33 = 5.28 cubic feet,

4) Total cubic yards = 5.28 × 0.037 = 0.195 yards,

5) No. of 80lb bags = 0.195 ÷ 0.022 = 9 bags,

or No. of 60lb bags = 0.195 ÷ 0.017 = 12 bags,

or No. of 40lb bags = 0.195 ÷ 0.011 = 18 bags,

or No. of 50lb bags = 0.195 ÷ 0.0138 = 14 bags,

or No. of 90lb bags = 0.195 ÷ 0.025 = 8 bags.

You will need approximately either Nine of 80lb (pounds), or Twelve of 60lb, or Eighteen of 40lb, or Fourteen of 50lb, or Eight of 90lb bags of concrete for 4 by 4 solid slab at suggested depth of 4 inches thick.

**How many bags of concrete do i need for 4×8 slab**

Steps to calculate number of bags of concrete you need for 4 by 8 slab are following:

1) Square footage = 4’×8′ = 32 sq ft,

2) 4″ in feet = 4/12 = 0.33′,

3) Total cubic feet = 32×0.33 = 10.56 cubic feet,

4) Total cubic yards = 10.56 × 0.037 = 0.39 yards,

5) No. of 80lb bags = 0.39 ÷ 0.022 = 18 bags,

or No. of 60lb bags = 0.39 ÷ 0.017 = 24 bags,

or No. of 40lb bags = 0.39 ÷ 0.011 = 36 bags,

or No. of 50lb bags = 0.39 ÷ 0.0138 = 28 bags,

or No. of 90lb bags = 0.39 ÷ 0.025 = 16 bags.

**:-How many bags of concrete is in a yard**

**How many bags of concrete do i need for 10 cubic feet**

**How many bags of concrete do I need for a yard**

You will need approximately either Eighteen of 80lb (pounds), or Twenty four of 60lb, or Thirty six of 40lb, or Twenty eight of 50lb, or Sixteen of 90lb bags of concrete for 4 by 8 solid slab at suggested depth of 4 inches thick.

**How many bags of concrete do i need for 1 yard**

Steps to calculate number of bags of concrete you need for 1 yard are following:

1) No. of 80lb bags = 1 ÷ 0.022 = 45 bags,

2) No. of 60lb bags = 1 ÷ 0.017 = 60 bags,

3) No. of 40lb bags = 1 ÷ 0.011 = 90 bags,

4) No. of 50lb bags = 1 ÷ 0.0138 = 72 bags,

5 No. of 90lb bags = 1 ÷ 0.025 = 40 bags.

You will need approximately either Sixty of 60 lb, or Forty of 90 lb, or Forty five of 80 lb, or Seventy two of 50 lb, or Ninety of 40 lb bags of concrete for 1 yard. Thus, the amount of bags it takes to make one yard of concrete is either 90 of 40lb, or 45 of 80lb, or 60 of 60lb bags of concrete.

**Conclusion:-**

To figure out how many number of bags of concrete you need, multiply length by width, and then by thickness in feet. Multiply the resulting number by 0.037 to find cubic yards. Then divide the total yards of concrete needed by bags yields in yards.