Civil Engineering Tools
Concrete volume, brick counts, rebar steel weight, slopes, and retaining wall metrics.
Concrete Volume & Slab Calculator
Calculate concrete slab volume in cubic yards, cubic meters, and premix 80-lb / 60-lb bags.
Brick & Mortar Quantity Calculator
Estimate the number of standard bricks and mortar bags required for any masonry wall dimensions.
Steel Rebar Weight Calculator
Calculate steel rebar bar weight in kg, tonnes, and lbs based on diameter (D²/162 formula).
Slope, Grade & Pitch Calculator
Calculate slope percentage (grade), degrees of incline, and roof pitch from vertical rise and horizontal run.
Retaining Wall Block Calculator
Calculate retaining wall blocks, vertical courses, and drainage gravel backfill volume.
Asphalt Paving Tonnage Calculator
Calculate hot mix asphalt required in tons and cubic yards for driveways, roads, and parking lots.
Wall & Room Paint Quantity Calculator
Calculate gallons and liters of paint required based on room dimensions, doors, windows, and coats.
Flooring Tile & Hardwood Box Calculator
Calculate total square footage, waste buffer, and boxes of hardwood, laminate, or tile needed.
Gravel, Sand & Aggregate Calculator
Calculate gravel, sand, or crushed stone weight in tons and cubic yards for landscaping and drainage.
Culvert Pipe Flow Capacity Calculator
Calculate stormwater culvert hydraulic capacity and discharge velocity using Manning's equation.
Drywall Sheet & Mud Calculator
Calculate drywall panels (4x8 or 4x12), screws, and joint compound pails needed for any room.