Spike's Calculators

# Stadium Shaped Slab Concrete Calculator

Calculate the amount of concrete needed for a slab in the shape of a stadium.

A stadium is a two-dimensional geometric shape consisting of a rectangle with half circles on opposite sides. ##### Formulas
```Area  = π * r² + 2 * r * a
Perimeter = 2 * (πr + a)
where  π = 3.14159265
r = the radius of the half-circle
a = the length of the rectangle shape in between the half circles```

### Circular Concrete Slab

Length A: ft in
Length B: ft in
Depth: in
Area: ft ²
Perimeter: lin ft

#### Amount of concrete needed:

Cubic Feet: ft ³
Cubic Yards: yd ³
Cubic Meters: m ³

#### Calculation

1. enter length A in feet and inches
2. length B in feet and inches
3. the depth of the slab in inches

#### Results

1. the area of the stadium in square feet
2. the perimeter of the stadium in lineal feet
3. the amount of concrete needed in cubic feet
4. in cubic yards
5. in cubic metres

### When Ordering Concrete

This concrete calculator will help you in estimating the amount of concrete needed for your project. The amount given as needed does not include any waste. Depending on your job, we recommend adding anywhere from an extra 4% to 10% to your concrete required calculation to make sure you have enough concrete to finish the job. Ask when ordering the concrete. They will be able to give you a good idea of what is needed.