All Tools

Estimate fence materials — posts, rails, pickets, panels, mesh, concrete, and hardware — for wood, chain-link, vinyl, and metal fences, with cost and a diagram.

Calculate optimal stair dimensions including riser height, tread depth, angle, and stringer length, and check building-code compliance with the comfort rule instantly.

Calculate how many drywall sheets you need for walls and ceilings, with door and window deductions, a waste factor, accessories, multi-room totals, and cost.

Calculate board feet for lumber and logs. Build a material list, convert between units, and estimate costs with a waste factor.

Estimate how much flooring you need for any room shape: pieces, boxes, waste, skirting, and cost for laminate, vinyl, hardwood, and tile.

Calculate roof pitch, angle, slope percentage, and multiplier from rise and run, a pitch ratio, or an angle, then estimate rafter length and roof area.

Work out how many tiles you need for a floor or wall, with grout spacing, laying patterns, waste percentage, door and window deductions, boxes, and cost.

Calculate how much paint you need for interior or exterior rooms. Subtracts doors and windows, factors paint type, coats, texture, and waste, with multi-room totals.

Find the electron configuration, noble gas notation, orbital diagram, and quantum numbers for any of the 118 elements, including ions.

Calculate concrete volume for slabs, footings, columns, walls, stairs, and more. Get bag estimates, cost projections, and export results as PDF.

Calculate area in square feet for any room or space. Supports 8 shapes, multi-zone areas, unit conversion, and cost estimation.

Estimate roofing materials and costs for your project. Calculate shingles, underlayment, ridge caps, and more from roof dimensions, pitch, and type.