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`V = pi *( "r" )^2 * D `

Enter a value for all fields

The **Volume of a Circular Slab** calculator computes the cubic yards (volume) of concrete a circular slab based on the radius and depth.

**INSTRUCTIONS:** Choose units and enter the following:

- (
**r**) Radius of the slab (half of the diameter) - (
**d**) Depth of the slab.

**Volume of Concrete (V): **The volume (**V**) is returned in cubic yards. However, this can be automatically converted to other volume units (e.g. cubic meters) via the pull-down menu. The calculator also returns same volume in the number of different size bags of concrete as follows:

- 40lb bags
- 60lb bags
- 80lb bags

The calculator also returns the surface area and perimeter of the circular slab.

- Cubic Yards of Concrete in a Circular Slab
- Amount of rebar needed in a circular slab
- Surface area of a circular concrete slab
- Perimeter or circumference of a circular concrete slab
- Weight of Concrete in a Circular Slab
- Cubic Yards in a Semi-Circle Slab
- Weight of a Semi-Circle Slab

- Cubic Yards of Concrete in a Slab
- How many 40lb bags of concrete for so many cubic yards of concrete.
- How many 60lb bags of concrete for so many cubic yards of concrete.
- How many 80lb bags of concrete for so many cubic yards of concrete.
- Price of a 40lb bag of concrete.
- Price of a 60lb bag of concrete.
- Price of a 80lb bag of concrete.
- How many 40lb bags of concrete needed for a slab.
- How many 60lb bags of concrete needed for a slab.
- How many 80lb bags of concrete needed for a slab.
- Cubic Feet of Concrete in a 40lb bag.
- Cubic Feet of Concrete in a 60lb bag.
- Cubic Feet of Concrete in a 80lb bag.
- Cubic Yards of Concrete in a Circular Slab.
- Number of 40lb bags needed for a Circular Slab
- Number of 60lb bags needed for a Circular Slab
- Number of 80lb bags needed for a Circular Slab