# Concrete Slab Calculator - Imperial

Calculate concrete volume needed for a slab using feet and inches for measurements with results in cubic feet, cubic yards and cubic metres

### Formula's used:

length * width * depth = V**Example calculation:**

slab length = 25' width = 12' - 8" concrete slab thickness = 6"It all has to be in the same units. It would be possible to change it all into inches, but that makes for large numbers so it will be easier to convert the inches into a foot value.

12' - 8" - convert 8 inches into feet - divide it by 12 - 8 ÷ 12 = 0.666 feet

12' - 8" then becomes 12.666 feet

convert 6" into a foot value - dividing by 12 - 6 ÷ 12 = 0.5 feet

the calculation then becomes 25 * 12.666 * 0.5 = 158.325 cubic feet

You will need 158.3 cubic feet of concrete for this slab

To convert cubic feet to cubic yards multiply cubic feet * 0.037037037037037

To convert cubic feet to cubic metres multiply cubic feet * 0.028316846592

To convert cubic yards to cubic metres multiply cubic yards * 0.764554857984

### Concrete Slab

#### Calculation

- enter the length measurement of the slab in feet and inches
- the width of the slab in feet and inches
- thickness of the slab inches

#### Results

- square footage of the slab
- amount of concrete needed in cubic feet
- concrete needed in cubic yards
- concrete needed 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. It is recommended, depending on the job you are doing, to add anywhere from an extra 4% to 10% to your concrete order 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.##### Imperial

Complete FoundationColumns

Column + Pad

Footings

Footing + Wall

Foundation Wall

Pads

Rectangle Post + Pad

Slabs

Stairs

Stairs - Round

##### Metric

Complete FoundationColumns

Column + Pad

Footings

Footing + Wall

Foundation Wall

Pads

Rectangle Post + Pad

Slabs

Stairs

Stairs - Round

##### Shapes using Imperial & Metric Measurements

CircleCircle - Metric

Donut

Donut - Metric

Equilateral Triangle

Octagon

Oval

Pentagon

Scalene Triangle

Trapazoid

Plastic Concrete Footing Form