Home improvement & construction calculators
Gravel, concrete, paint, decking, tile, drywall and more.
- Carpet CalculatorSquare footage of carpet needed from room dimensions plus waste %.
- Concrete Block CalculatorNumber of CMU blocks for a wall from length, height, and block size.
- Concrete CalculatorEstimate concrete volume and number of 60 lb or 80 lb bags. Enter length, width, depth (inches), and optional waste % for slabs and footings.
- Deck Board CalculatorNumber of boards needed for a deck.
- Drywall CalculatorDrywall sheets needed for a room.
- Fence Material CalculatorPosts and panels for a fence.
- Gravel CalculatorEstimate gravel or aggregate volume by length, width, depth, and waste %. Results in cubic yards, cubic feet, and cubic meters for ordering.
- Lawn Fertilizer CalculatorPounds of fertilizer needed from lawn area and application rate.
- Mulch CalculatorMulch needed for area.
- Paint CalculatorEstimate paint needed for walls by room length, width, height, number of coats, and coverage (sq ft per gallon). Results in gallons and liters.
- Pavers CalculatorPavers needed for a patio or path.
- Pool Volume CalculatorCalculate pool volume in gallons from length, width, and average depth.
- Roof Pitch CalculatorRoof pitch ratio and angle.
- Roofing CalculatorRoof area, squares and shingle bundles from your house size and roof pitch, plus underlayment, ridge cap and drip edge for gable or hip roofs.
- Square Footage CalculatorArea in square feet.
- Stair CalculatorCalculate number of steps, rise per step, and run per step from total rise.
- Tile CalculatorTiles needed for floor or wall.
- Topsoil CalculatorEstimate topsoil needed by area and depth.
- Wallpaper CalculatorRolls of wallpaper needed from room dimensions and roll coverage.
These calculators help you estimate materials and dimensions for common home and landscape projects. From gravel and concrete to paint, fencing, and deck boards, you enter your dimensions and get quantities in the units suppliers use—cubic yards, bags, gallons, or linear feet.
Who they're for: Homeowners planning DIY projects, contractors doing quick estimates, and anyone ordering materials for a driveway, slab, room, or outdoor structure. Waste factors and coverage rates are built in so you can order the right amount without overbuying or running short.
Common use cases: Figuring how much gravel or concrete to order for a patio or base, estimating paint for a room (including coats and coverage), counting deck boards or fence posts and panels, and converting roof pitch or tile quantities. Always confirm with your supplier for minimum orders and local availability.