Estimate The Cost Of A Concrete Floor From Area, Thickness And Your Own Current Rates. Calculate Cubic Metres, Add A Waste Allowance, Enter Ready-Mix Cost, Delivery, Labour, Reinforcement, Base Preparation, Formwork, Finishing And Other Project Costs, Then See A Clear Total And Cost Per Square Metre.
Select A Rectangular Floor, Round Floor, Multiple Identical Floors Or Enter A Known Volume. Empty Number Fields Show A Light 0 Placeholder Only—The 0 Never Becomes Part Of The Number You Type.
Your Result Will Appear Here After You Press Calculate Concrete Floor Cost.
The PDF Includes Floor Type, Measurements, Area, Base And Order Volume, Concrete Rate, Delivery, Labour, Reinforcement, Formwork, Base, Pump, Finishing, Other Costs, Tax And Total.
Start With Floor Area And Thickness, Convert Them To Cubic Metres, Then Add The Cost Components That Apply To The Actual Floor Build.
Separate Concrete Quantity From Labour, Reinforcement, Base And Finishing Costs So The Final Estimate Is Easier To Review.
Calculate The Surface Area Of Rectangular, Round Or Multiple Floor Sections.
Convert Floor Area And Thickness Into Cubic Metres.
Use Your Own Current Ready-Mix Rate And Delivery Charges.
Add Your Own Total Labour Cost Instead Of Using A Fixed Rate.
Include Polishing, Grinding, Sealing, Curing Or Other Floor-Finish Costs.
Compare The Final Project Total Against The Calculated Floor Area.
A Concrete Floor Cost Calculator combines floor geometry with the real cost components that apply to the project. Start by calculating the floor area, multiply by slab thickness to get cubic metres, then add any chosen allowance and the cost inputs you want included.
The calculator above uses editable rates rather than publishing one fixed concrete floor price. Concrete supply, labour, reinforcement, base preparation, formwork and finishing costs can vary with project scope, site access, specification and local suppliers.
Volume (m³) = Length (m) × Width (m) × Thickness (m)
A 6 m × 5 m floor that is 100 mm thick has an area of 30 m² and a base concrete volume of 3.00 m³. Convert 100 mm to 0.10 m before multiplying.
Volume = π × Radius² × Thickness
Divide diameter by two to find radius. The calculator reports both area and volume so the final estimate can also be shown as cost per square metre.
If several identical floor sections are being poured, use the Multiple Floors option. If the sections differ in size or thickness, calculate them separately and add the results.
Small differences in base level, formwork, thickness and placement can change the actual quantity. The calculator starts with no built-in waste percentage, so you choose the allowance that fits the project.
Enter the current supplier rate per cubic metre. The calculator multiplies the order volume by that rate and adds the delivery or short-load charge separately.
For a detailed supplier-cost breakdown, use the Ready Mix Concrete Cost Calculator.
Labour can include placing, screeding, bull-floating, edging, finishing, joint work, curing and cleanup depending on the scope. Enter your own total labour amount or use the Concrete Labor Cost Calculator.
Concrete floors can include mesh, reinforcing bars, chairs, dowels and other reinforcement. The calculator does not choose reinforcement. Enter the cost from the actual project takeoff or supplier quote.
Floor construction may require excavation, compacted base, levelling, vapour-control layers or other preparation. Use the Base / Excavation field for the amount you want included in the estimate.
Perimeter forms, internal rebates, steps, setdowns or thickened edges can add cost. Enter these separately if they are not already part of the labour total.
Floor finishing can range from a simple broom or trowel finish to grinding, polishing, sealing or decorative treatments. The finishing field can be used for the total amount associated with the finish you are pricing.
Polished concrete is more than just concrete supply. Grinding stages, densifiers, polishing, edge work and sealing can affect the total. Use the finishing field for the quoted polishing scope rather than assuming a fixed rate.
Garage floors often require careful base preparation, reinforcement, joints and finishing in addition to the concrete itself. If your main goal is quantity planning, use the Concrete Garage Floor Calculator if available on the site.
The calculator divides the final estimated project total by the floor area. This provides an effective cost per m² based on exactly which costs you entered.
Cost Per m² = Final Estimated Floor Cost ÷ Floor Area
| Cost Category | Entered As | Examples |
|---|---|---|
| Concrete Supply | A$/m³ | Ready Mix Material Rate |
| Delivery | Fixed A$ | Delivery, Minimum Load, Short Load |
| Labour | Fixed A$ | Placement, Screeding, Finishing, Cleanup |
| Reinforcement | Fixed A$ | Mesh, Bars, Chairs, Dowels |
| Formwork | Fixed A$ | Perimeter Forms, Setdowns, Edges |
| Base Preparation | Fixed A$ | Excavation, Base Material, Compaction |
| Pump / Placement | Fixed A$ | Concrete Pump Or Special Placement |
| Finishing | Fixed A$ | Polishing, Grinding, Sealing, Curing |
A house floor can include beams, thickened areas, setdowns and services that are not represented by one uniform slab thickness. Calculate separate sections where needed and use the project drawings for structural dimensions.
Shed floors can be simple rectangular slabs, but excavation, subbase, reinforcement and edge details may still be significant. Enter those costs separately to avoid hiding them inside the concrete rate.
Workshop floors may have higher load demands, different reinforcement or thicker concrete. The calculator can estimate quantity and cost once the required thickness and specification are already known.
All numeric fields start empty and display a light 0 placeholder only. Typing 6 gives 6 rather than 06, and the entered number remains clear without blur.
This calculator estimates quantity and cost only. It does not select floor thickness, reinforcement, concrete strength, base design, vapour barriers, joints, drainage, load capacity or structural requirements.
For general Australian concrete industry information, visit Cement Concrete & Aggregates Australia. For silica and work-safety information, consult Safe Work Australia.
Concrete Supply, Base Preparation, Labour And Finishing / Structural Costs Can Be Entered Separately.
Order Volume Multiplied By The Ready-Mix Rate.
Excavation And Base Preparation Costs.
Placement And Finishing Labour Entered By You.
Polishing, Grinding, Sealing Or Other Floor Finishes.
These Examples Demonstrate Volume Calculations Only. They Are Not Market Price Quotes Or Structural Recommendations.
| Floor Example | Dimensions | Area | Base Volume | With 10% Allowance |
|---|---|---|---|---|
| Small Floor | 3 m × 4 m × 100 mm | 12.0 m² | 1.20 m³ | 1.32 m³ |
| Garage-Size Example | 6 m × 6 m × 100 mm | 36.0 m² | 3.60 m³ | 3.96 m³ |
| Workshop Floor | 8 m × 6 m × 125 mm | 48.0 m² | 6.00 m³ | 6.60 m³ |
| Round Floor | 4 m Diameter × 100 mm | 12.57 m² | 1.26 m³ | 1.38 m³ |
Quick Answers About Floor Volume, Ready Mix, Labour, Reinforcement, Finishing And Cost Per Square Metre.
Calculate The Floor Volume, Add Any Project-Specific Allowance, Multiply By Your Concrete Rate, Then Add Delivery, Labour, Reinforcement, Base Preparation, Formwork, Finishing And Other Costs.
For A Rectangular Floor, Multiply Length By Width By Thickness In Metres.
Yes. Rectangular, Round And Multiple-Floor Options Calculate Area Automatically.
Yes. The Final Estimated Project Total Is Divided By Floor Area.
Yes. Use The Finishing / Polishing / Curing Field For The Total Finish Cost You Want Included.
Yes. Labour And Reinforcement Are Separate Editable Cost Inputs.
Yes. Delivery Or Short-Load Fees Can Be Entered Separately.
Only Add A Percentage If Your Entered Costs Are Tax-Exclusive. Leave It At 0 If Your Costs Already Include Tax.
The 0 Is A Placeholder Only. It Is Not Part Of The Actual Number You Enter.
No. Typing 6 Gives 6, Not 06.
No. Thickness And Structural Requirements Must Come From The Appropriate Project Design Or Specification.
The PDF Includes Floor Dimensions, Area, Volume, Concrete Supply, Delivery, Labour, Reinforcement, Formwork, Base, Finishing, Other Costs, Tax And Total.
Use Current Supplier Quotations, Project Documents And Australian Industry Or Safety Guidance Alongside Any Online Floor Cost Estimate.
Australian Industry Information And Technical Concrete Resources.
Visit CCAANational Information About Silica Hazards And Safe Work Requirements.
Read Silica GuidanceConfirm Mix Specification, Delivered Rate, Minimum Load, Delivery And Service Fees.
Use The Required Floor Thickness, Reinforcement, Base, Finish And Concrete Specification.