Slabs • Patios • Driveways • Footings • Posts
Use this Concrete Calculator in Little Rock to estimate cubic feet, cubic yards, concrete bags and material cost for Little Rock-area slabs, patios, driveways, sidewalks, footings, posts and other concrete projects. Enter your actual dimensions and local material price for a project-specific estimate.
Estimate slabs and patios, continuous footings, round posts/columns, or convert known square footage into bags and ready-mix cost.
Enter finished dimensions for a patio, driveway panel, garage slab, sidewalk section or other rectangular concrete flatwork.
Verify manufacturer bag yield.
Thickened edges, footings, steps and other deeper concrete sections should be calculated separately.
Estimate a uniform continuous footing, grade beam or strip foundation.
Estimate concrete for cylindrical posts, piers and round columns.
Already know the square footage? Convert area and slab thickness into cubic yards, bag quantity and material cost.
The calculator works from geometry, so the first step is measuring the actual concrete dimensions. For a slab, patio or driveway panel, measure finished length and width and enter the planned slab thickness. For a footing, measure total continuous length and use the actual width and depth from the project design. For posts or piers, use the finished diameter and poured height/depth.
After calculating exact volume, compare it with an optional allowance. The allowance is not a mandatory Little Rock percentage—it simply gives you a larger planning quantity to compare against the mathematical volume.
Use finished concrete dimensions.
Slab, footing, round post or area.
Use the project-specific concrete thickness.
Enter an Little Rock-area supplier quote if desired.
Check permits, plans and field dimensions.
For most rectangular slabs, the concrete quantity formula is straightforward.
Cubic yards = cubic feet ÷ 27.
A 20 × 20 foot slab at 4 inches thick contains about 133.33 cubic feet, or approximately 4.94 cubic yards before an ordering allowance.
| Project | Example Size | Thickness | Approx. Concrete |
|---|---|---|---|
| Small Patio | 10 × 12 ft | 4 in | 1.48 yd³ |
| Patio / Slab | 12 × 20 ft | 4 in | 2.96 yd³ |
| Garage Floor | 20 × 20 ft | 4 in | 4.94 yd³ |
| Driveway Section | 20 × 30 ft | 5 in | 9.26 yd³ |
| Large Slab | 30 × 40 ft | 6 in | 22.22 yd³ |
These are geometric examples only. Actual thickness, reinforcement, base preparation and project design can differ.
Location-focused guidance without forcing a single local price.
Calculations use project dimensions rather than broad averages.
Compare bagged concrete for smaller pours.
Estimate cubic yards before requesting a supplier quote.
Slabs are among the most common concrete projects in Central Little Rock, including patios, garage floors, sheds, equipment pads and other flatwork. The slab calculator converts the surface footprint and thickness into concrete volume.
Do not use excavation depth as slab thickness. Excavation can also contain compacted base, drainage layers or other materials. Enter the actual concrete thickness shown on the project plan.
For a dedicated slab page, use the Concrete Slab Calculator. For floor-specific work, use the Concrete Floor Calculator.
For a rectangular patio, multiply length by width to get square footage, then multiply by slab thickness. Irregular patios can be divided into rectangles, circles or other simple shapes and calculated separately.
Use the Concrete Patio Calculator for circular and L-shaped patio geometry.
A driveway estimate should be based on the actual driveway footprint and the specified thickness. If different driveway sections have different thicknesses, calculate each section separately and add the cubic-yard quantities.
Permit, right-of-way and driveway-access requirements can vary by city, county and road authority. Check the local building or engineering department for the property before construction. For statewide building-code information, use the Little Rock Department of Commerce Building Codes page.
Continuous strip footings and grade beams are calculated from total length × width × depth. The calculator does not size a footing structurally. Soil conditions, loads, building type and code requirements can affect foundation design, so use dimensions from approved plans or qualified design guidance.
For more detail, use the Concrete Footing Calculator or Concrete Foundation Wall Calculator.
Round concrete posts and piers use the cylinder formula π × radius² × height. If the project includes an enlarged footing at the bottom, calculate that footing separately. For larger structural columns, use the Concrete Column Calculator.
Concrete prices can change by supplier, mix specification, delivery distance, order size and additional service charges. Rather than hard-coding a citywide price, the calculator lets you enter a current local quote per cubic yard.
For sealer quantities after the project is ready for treatment, use the Concrete Sealer Coverage Calculator.
This Concrete Calculator in Little Rock is designed for quantity estimates for residential and light-commercial concrete work in Little Rock, Arkansas and nearby Pulaski County communities. Use it for slabs, patios, garage floors, sidewalks, driveway sections, footings, foundation elements, posts and other common concrete shapes.
The volume formulas are the same across the metro area: measure finished dimensions, enter actual concrete thickness and calculate cubic yards. Local ready-mix prices, minimum-load fees, delivery zones, permits and public-right-of-way requirements can vary, so enter your own supplier price instead of relying on a generic citywide average.
For a private sidewalk, walkway or driveway slab, calculate area from length × width and multiply by the specified thickness. If the project affects curb, gutter, sidewalk, driveway apron or other public-right-of-way improvements, City requirements can apply.
Little Rock planning documents and current Planning Commission engineering comments state that work within the public right-of-way must conform to City of Little Rock Public Works Standard Details and ADA requirements, and City engineering staff should be contacted before concrete or asphalt placement where inspections are required.
Use the Slab / Patio mode for driveways, patios, garage floors and walkways. Use the Footing / Grade Beam mode for continuous foundation elements, and the Round Post / Column mode for cylindrical posts or piers. Different shapes should be calculated separately and then combined for the final ready-mix order.
For larger projects, compare your final cubic yards with the Concrete Truck Count Calculator and use the Concrete Pump Capacity Calculator when placement will require pumping.
Little Rock concrete projects can face hot, humid summer conditions as well as cooler winter weather. High temperature, sun, wind and humidity changes can affect evaporation, slump loss, finishing time and curing. Cooler weather can slow setting and early strength development. Weather does not change the geometric cubic-yard calculation, but it can change production, delivery, placement, finishing, protection and curing procedures.
For hot-weather work, review ACI PRC-305-20: Guide to Hot Weather Concreting. For cold conditions, use ACI 306R-16: Guide to Cold Weather Concreting.
For curing schedule planning after placement, use the Concrete Cure Time Calculator.
Concrete quantity planning in Little Rock should account for the actual excavation, compacted base and drainage conditions. The calculator estimates concrete material volume only; it does not design stormwater systems, grading, base thickness, reinforcement or drainage.
Before ordering ready-mix, verify excavation depth, compacted base, forms, reinforcement and access. Uneven subgrade or local over-excavation can increase concrete quantity even when nominal slab dimensions have not changed.
The City of Little Rock Planning and Development Department handles building permits and related development review, while Public Works administers several civil-engineering permit types. Requirements depend on project scope and whether work affects grading, drainage, floodplain areas or the public right-of-way.
For current permit information, use the official City of Little Rock Planning and Development page. If curb, gutter, sidewalk, driveway apron or street-side work is involved, also verify Public Works and Engineering requirements before placement.
Little Rock projects are reviewed under applicable City requirements and Arkansas-adopted codes. Current City project documents reference the 2021 Arkansas Fire Prevention Code based on the 2021 International Building Code for structural work.
Because code application depends on project type and jurisdiction, use the current City of Little Rock Planning and Development information and the applicable Arkansas code resources before relying on a specific edition for construction decisions.
This Concrete Calculator in Little Rock is a quantity estimator only. It does not determine structural slab thickness, footing depth, reinforcement, load capacity or code compliance.
Small repairs and pads may be practical with bagged concrete, while larger slabs, patios and footings can require many bags. The calculator lets you compare approximate bag quantity with ready-mix cubic yards.
Bag yields vary by manufacturer and product. Verify the package yield before purchasing. For larger pours, ready-mix can simplify batching but may include delivery minimums, short-load fees or waiting-time charges.
The exact mathematical quantity assumes uniform thickness, perfect forms and zero placement loss. Real job sites can differ because of uneven base elevations, over-excavation, form tolerance or concrete left in placement equipment.
The calculator's allowance field is optional. Choose the final order based on actual field conditions and supplier guidance.
Concrete is volume, so thickness must be included.
The calculator expects slab thickness in inches and converts it automatically.
Calculate each thickness zone separately.
Add deeper concrete geometry separately.
Enter a current supplier quote instead of relying on an old citywide average.
Check official Little Rock permitting information for the exact project scope.
The calculator does not select slab thickness, footing size, reinforcement or concrete strength.
Concrete roadway, bridge, curb, ditch-paving and other public-infrastructure work should follow the applicable agency plans and specifications rather than generic residential assumptions.
For Arkansas Department of Transportation work, use the current ARDOT Standard Specifications and project contract documents. ARDOT also publishes standard roadway and bridge drawings for public projects.
The same cubic-yard formulas apply across Little Rock and nearby Pulaski County communities, but permit requirements and road jurisdiction can differ. A project inside Little Rock city limits can be subject to City review, while work outside the city may involve Pulaski County or another local authority.
Use this page for concrete quantity planning, then confirm the mix specification, delivery schedule, permit requirements and construction details with the appropriate project professionals and suppliers.
Concrete quantity comes from finished project dimensions. Weather affects placement and curing procedures, not the basic geometric volume.
Suppose a Little Rock residential slab is 12 feet by 20 feet and 4 inches thick. The area is 240 square feet, and the thickness is one-third of a foot.
With a 10% planning allowance, the calculator shows about 3.26 cubic yards.
Common questions about Little Rock concrete yards, slabs, patios, driveways, bags, cost and permits.