Construction Calculators
Concrete, drywall, roofing, and material calculators for your building projects.
44 calculators available
Concrete Calculator
Calculate how many cubic yards of concrete you need for slabs, footings, and columns.
Square Footage Calculator
Calculate the square footage of rooms, land, and complex shapes for any project.
Drywall Calculator
Calculate sheets of drywall, joint compound, and tape needed for walls and ceilings.
Gravel Calculator
Estimate tons and cubic yards of gravel needed for driveways, paths, and landscaping.
Fence Calculator
Calculate fence materials including posts, rails, pickets, and total cost.
Stair Calculator
Calculate stair dimensions including rise, run, number of steps, and stringer length.
Sand Calculator
Calculate how much sand you need in tons or cubic yards for any project.
Mulch Calculator
Calculate cubic yards and bags of mulch needed for garden beds and landscaping.
Topsoil Calculator
Calculate how much topsoil you need for gardens, lawns, and raised beds.
Roof Pitch Calculator
Calculate roof pitch, angle, and rafter length from rise and run measurements.
Pool Volume Calculator
Calculate the water volume of your swimming pool in gallons and liters.
Pool Salt Calculator
Calculate the right amount of salt to add to your saltwater pool.
Duct Calculator
Size HVAC ducts based on airflow requirements and duct shape.
Paver Calculator
Calculate the number of pavers and base material needed for patios and walkways.
Hole Calculator
Calculate the volume of dirt to remove for post holes, trenches, and excavations.
Plant Spacing Calculator
Calculate optimal plant spacing and how many plants fit in your garden area.
Tree Removal Calculator
Estimate the cost of tree removal based on tree size, location, and complexity.
Rug Calculator
Determine the right rug size for any room based on furniture layout.
Aquarium Calculator
Calculate aquarium volume, water weight, and stocking levels for fish tanks.
Gear Ratio Calculator
Calculate gear ratios, output speed, and torque for mechanical systems.
Paint Calculator
Calculate exactly how many gallons of paint you need for any room, wall, or exterior project — with primer and second coat options.
Tile Calculator
Calculate how many tiles you need for floors, walls, backsplashes, and showers — with waste factor included.
Flooring Calculator
Calculate how many square feet of flooring you need for any room, including waste factor for hardwood, laminate, vinyl, and carpet.
Wire Gauge (AWG) Calculator
Calculate the correct wire gauge for any electrical circuit based on amps, voltage, and run length.
Voltage Drop Calculator
Calculate voltage drop percentage for any wire run to ensure NEC compliance.
Solar Panel Calculator
Calculate how many solar panels you need for your home based on energy usage and roof space.
Battery Backup Calculator
Calculate how long a battery bank will power your home or devices during an outage.
Generator Size Calculator
Calculate the generator wattage you need to power your home appliances during an outage.
Electrical Load Calculator
Calculate total electrical load in amps and watts for residential panels and circuits.
Conduit Fill Calculator
Calculate the maximum number of wires that fit in electrical conduit per NEC fill tables.
Lumber Calculator
Calculate board feet of lumber needed for framing, decking, fencing, or any wood project.
Roofing Calculator
Calculate roofing squares, shingles, and underlayment for any roof shape and pitch.
Deck Calculator
Calculate decking boards, joists, posts, and material cost for any deck size.
Insulation Calculator
Calculate insulation R-value needed, rolls or bags required, and coverage for walls and attics.
Brick Calculator
Calculate the number of bricks and mortar needed for walls, patios, and walkways.
Concrete Block Calculator
Calculate how many concrete blocks (CMU) you need for walls and foundations.
Asphalt Calculator
Calculate tons of asphalt needed for driveways, parking lots, and road projects.
HVAC Sizing Calculator
Calculate the HVAC tonnage needed for your home using a Manual J load estimate.
Water Heater Size Calculator
Calculate the right water heater size (gallons and BTU) for your household.
Room Size Calculator
Calculate the square footage of any room shape and convert to square meters.
Wallpaper Calculator
Calculate how many rolls of wallpaper you need for any room with door and window deductions.
Carpet Calculator
Calculate how much carpet you need in square yards and total cost for any room.
Window AC Size Calculator
Calculate the correct BTU window air conditioner size for any room based on square footage and sun exposure.
BTU Calculator
Calculate BTU requirements for heating and cooling any space based on area and climate.