Driveway volume
panel length × panel width × thickness × equal panelsThe result is the geometric volume before waste. Unequal parking pads, aprons, flares, and walkways should be measured as separate rectangles and added to the final order.
Concrete driveway calculator
Estimate concrete for a rectangular driveway or several equal panels. Add your own waste factor and current supplier pricing.
Enter project dimensions
Use the finished dimensions inside your forms.
Calculate sections by their real thickness
Driveways often have thickened edges, aprons, turnarounds, or separately placed panels. Equal sections are useful only when length, width, and depth match; calculate different geometry independently and add the order volumes.
- Measure inside the forms after the base is prepared.
- Confirm drainage, joints, reinforcement, strength, and curing requirements.
- Coordinate truck access, placement rate, finishing labor, and supplier minimums.
Break the footprint into panels
- Sketch the driveway and divide it into rectangles.
- Record the inside form dimensions for each rectangle.
- Check depth along edges and the centerline.
- Use the section multiplier only for rectangles with the same dimensions.
Worked example
40 ft × 10 ft driveway at 5 in thick
Measured40 × 10 × (5 ÷ 12) = 166.67 ft³
With 10% waste166.67 × 1.10 = 183.33 ft³
Ready-mix183.33 ÷ 27 = 6.79 yd³
80 lb bags183.33 ÷ 0.60 = 305.56, rounded up to 306
Driveway-specific assumptions
- The example does not prescribe slab thickness or reinforcement.
- Thickened edges, curbs, drainage channels, aprons, and transitions are separate volumes.
- The waste field does not account for a major over-excavation or unstable subgrade.
Structural and site checks
Vehicle loads, soils, drainage, frost, reinforcement, concrete mix, joints, and curing affect performance. Follow the project design and local rules, and use a qualified professional where required.