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`"Slab Circumference" = 2 * pi * "r" `

Enter a value for all fields

The **Perimeter (Circumference) of a Circular Slab** * Circular Concrete Slab*equation computes the perimeter (circumference) of a circular slab base on the radius (**r**).

**Instructions: **Choose your preferred units and enter the following:

- (
**r**) The radius of the circular slab. Note: the radius is simply half the diameter.

**Circular Slab Perimeter (P):** The perimeter of the circular slab is returned in feet. However, this can be automatically converted to other length units (e.g. meters) via the pull-down menu.

- Compute the Weight of a Rectangular Slab
- Compute the amount of rebar needed in a circular slab
- Compute the surface area of a circular concrete slab
- Compute the perimeter or circumference of a circular concrete slab
- Cubic Yards of Concrete in a Slab
- Compute the Weight of a Circular 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
- Cubic Yards in a Semi-Circle Slab
- Weight of a Semi-Circle Slab