Calculate concrete for a sidewalk. Enter length, width, and thickness to get cubic yards, bag count, and cost estimate.
Sidewalks and walkways are essential features that connect driveways, entries, and outdoor living spaces. Concrete sidewalks typically range from 3 to 5 feet wide and are poured 4 inches thick for residential use.
This calculator determines the concrete volume needed for your sidewalk or walkway project. Enter the total length, width, and desired thickness, and the tool outputs the volume in cubic feet, cubic yards, and bag equivalents — plus a cost estimate for budgeting.
For long sidewalk runs, consider pouring in sections (one section per day if needed). Each section should end at a planned control joint location. The calculator can accommodate the full length regardless of whether you pour it all at once or in stages.
Understanding this metric in quantitative terms allows construction professionals to compare design alternatives, evaluate cost-effectiveness, and select the optimal approach for each project. Accurate calculation of this value helps construction professionals plan projects more effectively, reduce material waste, and ensure compliance with building codes and industry standards.
Sidewalk dimensions seem simple, but small errors multiply over long lengths. A 50-foot sidewalk at 4' wide and 4" thick uses over 2.5 cubic yards of concrete. Ordering even half a yard too little means a partial pour and a cold joint. This calculator ensures you order the right amount.
Volume = Length (ft) × Width (ft) × Thickness (in) ÷ 12 With waste: Volume × (1 + waste %) Cubic yards = ft³ ÷ 27
Result: 3.11 yd³
60 ft × 4 ft × 4 in / 12 = 80 ft³. With 5% waste: 84 ft³ = 3.11 yd³. At $160/yd = approximately $498 for concrete material.
Follow the natural walking path between destinations — people will create a desire path through grass if the sidewalk isn't convenient. Gentle curves are aesthetically pleasing and reduce the temptation to cut corners. Maintain a minimum 2-foot clearance from building walls.
Public sidewalks must comply with ADA standards: minimum 5 feet wide, maximum 2% cross-slope, maximum 5% running slope (or provide ramps). Changes in level greater than 1/4" require beveled transitions. Detectable warning surfaces are required at street crossings.
In freeze-thaw climates, use air-entrained concrete (5–7% air) and avoid deicing salts for the first winter. Applying a penetrating sealer after 28 days of curing protects against moisture absorption and salt scaling. Ensure proper drainage to avoid standing water on the surface.
Four inches is standard for residential sidewalks carrying only pedestrian traffic. If vehicles may cross the sidewalk (like at a driveway crossing), increase to 6 inches with reinforcement.
Residential front walks are typically 4 feet wide. Public sidewalks follow ADA guidelines at 5 feet minimum to allow wheelchair passage. Garden paths can be 2–3 feet wide.
Installed cost is typically $6–$12 per square foot for a standard broom-finish sidewalk. A 60-foot×4-foot sidewalk (240 sq ft) costs $1,440–$2,880 installed including excavation, forms, concrete, and finishing.
Yes. Use expansion joints (1/2" compressible filler) where the sidewalk meets driveways, buildings, or other fixed structures. Control joints (tooled or saw-cut) every 4–5 feet control random cracking.
A DIY sidewalk is feasible for experienced homeowners. The key challenges are setting level forms, finishing before the concrete sets, and timing the broom finish correctly. Pour sections no longer than 10–15 feet at a time if working alone.
A properly installed concrete sidewalk lasts 25–50 years. The most common cause of early failure is tree root uplift, poor subgrade compaction, or freeze-thaw damage on unsealed concrete.