AMR

Concrete Driveway Cost Calculator

Concrete Driveway Cost Calculator

The concrete driveway cost calculator is a practical tool that helps you estimate both the cost and the quantities of materials needed to build a concrete driveway. Instead of calculating by hand for gravel, rebars, wooden forms, and concrete, the calculator does the work for you and provides a clear summary of all materials and their costs. This saves time, reduces errors, and makes planning much easier.

If you have other projects in mind, you can also use our concrete estimator or try the rebar calculator.

Driveway Types

When building a driveway to your property, garage, or garden, the most common choices are:

  • Asphalt driveway
  • Concrete driveway
  • Gravel driveway
  • Cobblestone driveway
  • Brick driveway

     

Each option differs in cost, durability, and complexity. Concrete is often the best choice as it is durable, attractive, long-lasting, and maintenance-free. While more expensive than gravel or asphalt, it is still less costly than brick or cobblestone, making it a good value for large paved areas.

If you are still undecided, check out our gravel driveway calculator for comparison.

Concrete driveway dimensions

Length
Width
Depth

Detail planning

Gravel depth
Edge-rebar spacing
Rebar-rebar spacing
Single rebar length

Materials prices

Concrete
$
Gravel
$
Rebar
$
Form
$

Material estimations

Total concrete volume
Total gravel volume
Total rebars length
# of rebar pieces
Total forms length

Materials costs (Editable)

Concrete
$
Gravel
$
Rebar
$
Forms
$
Total cost
$

What the Calculator Does

The concrete driveway calculator estimates both material amounts and total costs:

Material amounts:

  • Concrete (volume)
  • Crushed stone/gravel (volume)
  • Rebars (total length and number of pieces)
  • Wooden forms (total length)

     

Material costs:

  • Concrete
  • Gravel
  • Rebars
  • Forms
  • Total cost of all materials

Modes of Use

The calculator has two modes:

  • Simple mode: Enter only the length, width, and depth of the driveway. All other details use default values, and costs are calculated automatically.
  • Advanced mode:  In addition to the basic dimensions, you can adjust settings such as gravel depth, rebar spacing, edge spacing, rebar length, and unit prices in your local currency. This gives you a more accurate cost breakdown.

Example Calculation

Step 1: Dimensions

  • Length = 100 ft
  • Width = 12 ft
  • Depth = 6 in (0.5 ft)

Step 2: Advanced Settings

  • Gravel depth = 4 in (0.33 ft)
  • Edge-rebar spacing = 3 in (0.25 ft)
  • Rebar spacing = 12 in (1 ft) in both directions
  • Single rebar length = 20 ft

Step 3: Material Prices

  • Concrete = $135/yd³
  • Gravel = $40/yd³
  • Rebar = $0.75/ft
  • Forms (lumber) = $1.50/ft

Step 4: Material Estimations

Concrete volume = length × width × depth
= 100 × 12 × 0.5 = 600 ft³
Convert to cubic yards: 600 ÷ 27 = 22.2 yd³

Gravel volume = length × width × gravel_depth
= 100 × 12 × 0.33 = 396 ft³
Convert to cubic yards: 396 ÷ 27 = 14.7 yd³

Forms length = (2 × length) + (2 × width)
= (2 × 100) + (2 × 12) = 224 ft

Rebars total length = rebar_rows + rebar_columns

  • rebar_rows = (floor((width − 2 × edge_rebar_spacing) ÷ rebar_spacing) + 1) × (length − 2 × edge_rebar_spacing)
    = (floor((12 − 0.5) ÷ 1) + 1) × (100 − 0.5)
    = 12 × 99.5 = 1,194 ft
  • rebar_columns = (floor((length − 2 × edge_rebar_spacing) ÷ rebar_spacing) + 1) × (width − 2 × edge_rebar_spacing)
    = (floor((100 − 0.5) ÷ 1) + 1) × (12 − 0.5)
    = 100 × 11.5 = 1,150 ft
  • Total rebars length = 1,194 + 1,150 = 2,344 ft
  • Rebar pieces = total ÷ single length = 2,344 ÷ 20 = 118 pieces

Step 5: Costs

  • Concrete = 22.2 yd³ × $135 = $2,997
  • Gravel = 14.7 yd³ × $40 = $588
  • Rebars = 2,344 ft × $0.75 = $1,758
  • Forms = 224 ft × $1.50 = $336

Total cost = $5,679

Cost Breakdown

  • Concrete = $2,997 (53%)
  • Rebars = $1,758 (31%)
  • Gravel = $588 (10%)
  • Forms = $336 (6%)

Contact us for a detailed Quote

Conclusion

The calculator gives you a complete picture of material requirements and costs, whether you want a quick estimate or a detailed breakdown with your local prices. With just a few inputs, you can plan your driveway confidently and avoid time-consuming manual calculations.