Paint Calculator
Paint needed for walls with area, coats, and coverage
Tile Calculator
Tiles needed with wastage, room area, and grout estimation
Concrete Calculator
Concrete volume and bags for slabs, footings, and columns
Mulch Calculator
Mulch, soil, or gravel volume in cubic yards and bag counts
Drywall Calculator
Drywall sheets with waste, studs, and screws estimate
Flooring Calculator
Flooring area, waste, boxes needed and material cost
Roofing Calculator
Roof area in squares, shingle bundles and installed cost
AC Size Calculator
Find the right air conditioner size in BTU and tons for any room. Enter your room dimensions, sun exposure, occupants, and climate zone to get the recommended AC capacity.
Asphalt Calculator
Calculate how much asphalt you need for a driveway, parking lot, or road. Enter area, thickness, and density to get tons required and estimated cost. Free online asphalt calculator.
Board and Batten Calculator
Plan a board and batten wall. Calculate how many boards and battens you need, their spacing, and total material cost for any wall. Free online board and batten calculator.
Brick Calculator
Calculate how many bricks you need for a wall or patio. Enter wall dimensions, brick size, and mortar joints to get brick count, mortar volume, and project cost. Free online brick calculator.
Can Light Calculator
Determine how many recessed can lights you need for a room. Enter room dimensions, ceiling height, and brightness target to get the number and spacing of recessed lights.
Conduit Size Calculator
Find the right conduit size for your wires. Add conductors with their insulation type to get the minimum conduit trade size per NEC fill rules. Free online conduit sizing calculator.
Cost per Square Foot Calculator
Calculate cost per square foot for construction, flooring, rent, or real estate. Enter total cost and area to get price per sq ft instantly. Free online calculator.
Deck Stain Calculator
Calculate how much deck stain and sealer you need. Enter deck dimensions, wood condition, and coats to get gallons required and cost. Free online deck stain calculator.
Decking Calculator
Calculate how many deck boards you need. Enter deck area, board dimensions, and spacing to get board count, fasteners, and project cost. Free online decking calculator.
Drop Ceiling Calculator
Calculate materials for a drop ceiling. Enter room dimensions to get ceiling tile count, main runners, cross tees, and wall angle for your suspended ceiling project.
Duct Size Calculator
Find the right duct size for your HVAC system. Enter airflow in CFM and desired velocity to get the minimum round duct diameter or rectangular duct dimensions.
Electrical Load Calculator
Calculate electrical load for a panel or circuit. Add appliances with their wattage, get total load, amps at 120/240V, and the recommended circuit breaker size.
Epoxy Resin Calculator
Calculate how much epoxy resin you need for a coating, river table, or casting. Enter surface area and depth to get resin volume in ounces, milliliters, and total cost.
Fence Calculator
Calculate fence materials for any project. Enter fence length and height to get posts, rails, pickets, concrete, and estimated cost. Free online fence calculator.
Generator Size Calculator
Find the right generator size for your home or job site. Add appliances to get starting and running watts, plus the minimum generator rating you need.
Gravel Calculator
Calculate how much gravel you need for a driveway, path, or garden. Enter area and depth to get cubic yards, tons, and cost. Free online gravel calculator.
Grout Calculator
Calculate how much grout you need for your tile project. Enter tile size, joint width, and tile area to get grout pounds and number of boxes. Free online grout calculator.
Heat Pump Cost Calculator
Estimate heat pump installation cost and savings. Enter your home size, system size, and current heating costs to compare upfront cost, operating cost, and payback time.
Insulation Calculator
Calculate how much insulation you need. Enter area and R-value target to find required thickness, bags, and material cost for fiberglass, cellulose, mineral wool, and spray foam.
Joist Span Calculator
Find the maximum floor joist span for your lumber size, spacing, and load. Enter species, joist size, on-center spacing, and live load to get the code-approved span.
LVL Beam Span Calculator
Size an LVL beam for your project. Enter beam width, depth, and span to find the allowable uniform load, or back-calculate the maximum span for a given load.
Multi-Room Square Footage Calculator
Add any number of rooms to total the square footage of your home or project. Works in feet and meters, ideal for flooring, painting, and real estate listings.
Paving Calculator
Calculate how many paving bricks or pavers you need. Enter the area, paver size, joint width, and waste allowance to get an exact brick count for patios, walkways, and driveways.
Pine Straw Calculator
Estimate how many bales of pine straw you need for garden beds and landscaping. Enter the area and desired depth to get bale count and coverage.
Plasterboard Calculator
Calculate how many drywall or plasterboard sheets you need for a room. Enter room dimensions and board size to get sheet count, screws, tape, and joint compound.
Pond Calculator
Estimate pond volume and water needs. Enter dimensions and shape to get gallons, liters, and liner size for garden ponds, koi ponds, and water features.
Ramp Calculator
Design a wheelchair or utility ramp that meets ADA slope requirements. Enter the rise and slope to get the run length, angle, and landing requirements.
Rebar Calculator
Calculate rebar needed for a concrete slab. Enter slab dimensions, bar size, and grid spacing to get the number of bars, total length, and total weight.
Recessed Lighting Calculator
Plan recessed can light placement. Enter room size, ceiling height, and desired brightness to get the number of lights, spacing, and a row layout.
Retaining Wall Calculator
Calculate blocks and gravel for a retaining wall. Enter wall length, height, and block size to get the number of blocks, base gravel, and material totals.
Rip Rap Calculator
Calculate rip rap stone for erosion control. Enter the area and stone thickness to get cubic yards and tons of rip rap for slopes, shorelines, and drainage channels.
Rolling Offset Calculator
Calculate pipe rolling offsets quickly. Enter the vertical rise, horizontal roll, and fitting angle to get the travel length and fitting multiplier for conduit or plumbing.
Roof Size Calculator
Estimate your roof's surface area for shingles. Enter the house footprint, roof pitch, and eave overhang to get square footage and roofing squares.
Room Square Footage Calculator
Calculate the square footage of any room. Enter length and width in feet or meters, choose a shape, and get the floor area plus perimeter for flooring and paint estimates.
Sand and Cement Calculator
Mix sand and cement for mortar or screed. Enter the area, thickness, and mix ratio to get bags of cement and the volume of sand you need.
Sand Calculator
Calculate how much sand you need. Enter the area, depth, and sand type to get cubic yards, tons, and 50 lb bags for paver bedding, fill, or concrete sand.
Septic Tank Size Calculator
Size a septic tank for your home. Enter the number of bedrooms to get the recommended tank capacity in gallons and the leach field area needed.
Siding Calculator
Estimate siding for your house. Enter wall area and openings to get net area, siding squares, and how much to order for vinyl or fiber-cement siding.
Sod Calculator
Calculate how much sod you need. Enter lawn dimensions to get square footage, pallets, and cost for a new lawn.
Soffit Calculator
Estimate soffit material and ventilation. Enter your house perimeter and eave width to get soffit panels needed plus attic vent area requirements.
Soil Calculator
Calculate soil for raised garden beds and planters. Enter bed size and depth to get bags of garden soil, cubic yards, and total cost.
Solar Panel Calculator
Calculate how many solar panels you need for your home. Enter monthly electricity usage and peak sun hours to get system size, panel count, roof area, and payback.
Spray Foam Insulation Cost Calculator
Calculate spray foam insulation cost and coverage. Enter the wall or attic area and thickness to compare open-cell and closed-cell foam prices.
Square Footage Calculator
Calculate the square footage of a house, room, yard or any space. Supports rectangles, L-shapes, triangles, circles and more with instant unit conversion.
Stair Calculator
Calculate stair risers, treads, total run and stringer length. Check IRC building code limits for residential stairs and plan your staircase.
Stone Calculator
Calculate how much crushed stone, gravel, river rock or flagstone you need. Enter area and depth to get cubic yards, tons and total cost.
Sub Base Calculator
Estimate road base, class 5 aggregate or crushed stone sub-base for driveways, patios and pavers. Get cubic yards, tons and truck loads.
Tarmac Calculator
Estimate the tarmac or asphalt you need for a driveway, path or parking area. Enter length, width and depth to get tonnes, coverage and cost.
Topsoil Calculator
Estimate topsoil for your lawn, garden or raised beds. Get cubic yards, bag counts and compare bagged vs bulk topsoil cost.
UPVC Windows Price Calculator
Estimate the cost of new UPVC windows. Pick window style and glazing, enter sizes and quantity to get a supply & fit price range.
Wainscoting Calculator
Calculate wainscoting panels, chair rail and baseboard for any room. Enter room size and panel style to get material amounts and cost.
Wall Area Calculator
Calculate the paintable wall area of any room. Deduct doors and windows, then get paint gallons and wallpaper rolls needed.
Wall Stud Calculator
Count wall studs, top and bottom plates for framing a wall. Enter wall length and height with stud spacing to get your lumber list.
GSM Calculator
Convert paper GSM (grams per square meter) to sheet weight, ream weight and pounds. Enter sheet size and quantity for accurate paper weights.
Square Footage Converter
Convert between square feet, square meters, square yards, square inches, acres and hectares. Instant area conversion for real estate and construction.
Square Feet to Linear Feet Calculator
Convert square feet to linear feet for decking, trim, fencing, siding and more. Enter area and material width to get exact board length you need to buy.
Tonnage Calculator
Convert cubic yards or cubic feet to tons for soil, sand, gravel, concrete, asphalt, mulch and more. Pick a material density and get tonnage instantly.