All calculators
Every tool uses the same yields, the same densities, and the same habit of rounding a bag up. Pick the shape of the pour or the unit you need to order.
Shapes
Slabs and pads
Concrete Slab Calculator
Patios, shed pads, garage floors, and house slabs all start as a rectangle. Measure it once and read the order.
Patio
Concrete Patio Cost Calculator
A patio is a slab with a walking load. The calculator starts at 4 inches. Change it if your detail says otherwise.
Walks
Concrete Sidewalk Cost Calculator
A walk is a long, narrow slab. Width and thickness matter more than people expect once the run gets past the front door.
Driveway
Concrete Driveway Calculator
A driveway is a slab that has to carry cars. Start at 5 or 6 inches, then price it with the rate your plant quoted.
Footings
Concrete Footing Calculator
A footing is a buried beam. Width and depth are often in inches, and the run is in feet. The tool keeps those units apart.
Walls
Poured Concrete Wall Cost Calculator
Poured walls are tall, thin rectangles. Thickness in inches is the number that moves the order.
Columns
Concrete Pier Calculator
Switch between a square column and a round one. Set quantity when the same pier repeats.
Piers
Sonotube Concrete Calculator
A tube form is a solid cylinder. Pick 8, 10, 12, 16, 18, or 24 inches, then set the height and how many tubes you have.
Posts
Post Hole Concrete Calculator
Size one hole, or lay out a fence by length and spacing. The post itself can be subtracted so you do not buy concrete for the wood.
Stairs
Concrete Step Calculator
Solid stairs are a stack of rectangles, each one a step taller than the one above it. The tool adds that stack.
Curb
Concrete Curb Calculator
A curb and gutter is a length times a cross section. The presets are starting sketches, not a city standard.
Round pads
Concrete Cylinder Calculator
Hot tub pads, silo floors, and fountain rings are circles. Leave the inner diameter at zero unless there is a hole in the middle.
Monolithic
Monolithic Slab Calculator
A monolithic slab is a floor and its edge beam poured together. The edge hangs below the slab, so it is not just length times width times 4 inches.
Ordering
Bags
Concrete Bag Calculator
See every common bag at once. One cubic yard is 45 bags of 80 lb, 60 bags of 60 lb, or 90 bags of 40 lb.
Yards
Concrete Yard Calculator
Ready-mix is ordered in cubic yards. The big number is the exact volume with your extra. The plant line rounds up to the next 0.25 yard.
Weight
Concrete Weight Calculator
Normal concrete is about 150 pounds per cubic foot. That is 4,050 pounds, or just over 2 short tons, per cubic yard.
Cost
Concrete Slab Cost Calculator
The volume is the part Concrete Calculator can know. The price is the part only your supplier knows. Type it in and the total appears.
Volume
Concrete Volume Calculator
Yards, cubic feet, and cubic meters stay on screen together. Pick the shape, or start from a volume you already have and convert it.
Ready-mix
Ready Mix Concrete Calculator
Tell the plant a volume they can batch. Concrete Calculator rounds up to the next quarter yard and counts loads for the truck size you set.
Metric
Concrete Calculator Uk
Start in metres and millimetres. The order is in cubic metres, with yards and bags still available if a supplier thinks in both.
Materials
Mix
Concrete Mix Ratio
A ratio is cement to sand to stone by volume. Enter the wet concrete you need to place. The batch is the loose materials that make it.
Gravel
Tons to Cubic Yards
Gravel is ordered in tons and placed in inches. The calculator connects those two units and adds extra for compaction.
Block
Cmu Calculator
Standard block covers 8 by 16 inches of wall. That is 1.125 blocks per square foot, before waste and before you cut for openings.