How much material do you need?

Free, fast calculators for concrete, landscaping, paint, flooring, roofing and more. Imperial or metric, with waste allowance and cost estimates built in.

Measurement

Cubic Yard CalculatorCubic yards, cubic feet and tons from area and depth. Square Footage CalculatorArea in sq ft, sq yd, m² and acres for common shapes.

Concrete & Masonry

Cinder Block CalculatorConcrete blocks, courses and mortar bags for a block wall. Concrete CalculatorCubic yards and bag counts for slabs, footings and round columns. Paver CalculatorPaver count plus base gravel and bedding sand for patios and walks.

Landscaping

Gravel CalculatorTons and cubic yards of gravel, stone, road base or sand. Mulch CalculatorCubic yards and bag counts for beds and tree rings. Sod CalculatorSod slabs, rolls and pallets for a new lawn, with waste. Topsoil CalculatorCubic yards, bags and tons of soil for lawns, beds and raised beds.

Walls & Paint

Drywall CalculatorDrywall sheets for a room, plus screws, tape and mud estimates. Paint CalculatorGallons and quarts of paint for walls and ceilings, by coat.

Flooring

Flooring CalculatorBoxes of laminate, LVP or hardwood, plus underlayment rolls. Tile CalculatorTile and box counts for floors, walls and backsplashes.

Roofing

Roof Pitch CalculatorPitch in X/12, degrees, slope % and rafter length. Roofing CalculatorRoof area, shingle squares, bundles and underlayment rolls.

Outdoor Building

Deck CalculatorDeck boards, linear feet, joists and screws for a deck. Fence CalculatorPosts, pickets, rails and concrete bags for a wood fence. Stair CalculatorRisers, treads, total run and stringer length from the total rise.

Built for real projects

Every calculator here starts from the way materials are actually sold — cubic yards of concrete or mulch, tons of gravel, 4×8 sheets of drywall, boxes of flooring, bundles of shingles — and works backwards from your measurements. Each page explains the formula it uses, shows a worked example, and lists the assumptions (like bag yields and waste factors) so you can check the math yourself.

Tips for accurate estimates