ToolPebCivil & Construction tools
Find calculations and practical tools relevant to civil & construction. Check the method, units and limits before using a result.
Concrete slab quantityVolume = L × W × thickness/1000 × (1 + allowance/100)Wall paint quantityLitres = area × coats / coverageTile purchase quantityTiles = ceil(area / tile area × (1 + allowance/100))Brick count from net wall volumeBricks = ceil(net volume / module volume × (1 + allowance/100))Roof rise from pitch angleRise = run × tan(angle)Grade / slope percentSlope = rise / run × 100Equal stair riser heightRiser height = total rise / riser countSteel bar mass from diameterMass = π(d/1000)² / 4 × length × densityRectangle second moment of areaI = b h³ / 12Elastic beam bending stressσ = M / ZRectangle elastic section modulusZ = b h² / 6Cantilever tip deflection from point loadδ = PL³ / (3EI)Rectangle diagonald = √(width² + height²)Ellipse areaA = πabTrapezoid areaA = (a+b)h/2Parallelogram areaA = base × perpendicular heightAnnulus areaA = π(R² − r²)Circular arc lengths = r × angle × π/180Circular sector areaA = πr² × angle/360Sphere surface areaA = 4πr²Closed cylinder surface areaA = 2πr(r+h)Rectangular prism volumeV = length × width × heightEllipsoid volumeV = 4πabc/3Pyramid volume from base areaV = base area × perpendicular height / 3Conical frustum volumeV = πh(R²+Rr+r²)/3Regular polygon areaA = n × side² / [4 tan(π/n)]2D Cartesian point distanced = √[(x₂−x₁)²+(y₂−y₁)²]Professional Worksheet StudioEditable logs, action plans and cost/ratio worksheets for 48 work areas. Save your own layout and export CSV.