Construction Tools
A toolkit for builders, contractors, and DIYers, estimate material quantities, project costs, and structural dimensions before you break ground.
Project planning
Construction Cost Calculator
Estimate construction cost from built-up area and rate per square foot.
Plot Area Calculator
Calculate plot area from length and width, in your preferred unit.
Land Unit Converter
Convert between acres, square feet, bigha, guntha, cent and other Indian land units.
Price Per Square Foot Calculator
Calculate a property's price per square foot to compare listings.
Excavation Volume Calculator
Calculate excavation volume and truck loads needed for hauling.
Materials & quantities
Concrete Quantity Calculator
Estimate cement, sand and aggregate needed for a concrete slab.
Cement Mortar Mix Calculator
Calculate cement bags and sand needed for a mortar mix ratio.
Brick & Block Calculator
Calculate the number of bricks or concrete blocks needed for a wall.
Reinforcement Steel Calculator
Estimate reinforcement steel weight needed for a concrete structural element.
Lumber / Board Feet Calculator
Calculate board feet of lumber needed from dimensions and piece count.
Gravel & Mulch Calculator
Calculate the volume and bags of gravel, mulch, topsoil or sand needed.
Plaster Quantity Calculator
Calculate cement and sand needed for wall plastering.
Finishing
Tile Quantity Calculator
Estimate how many tiles you need for a room, including wastage.
Paint Quantity Calculator
Estimate how much paint you need for a wall area.
Flooring Calculator
Calculate how many boxes of flooring you need, with a wastage allowance.
Drywall Calculator
Calculate how many drywall sheets you need, with a waste allowance.
Wallpaper Calculator
Calculate how many wallpaper rolls you need for a wall area.
Siding Calculator
Calculate how many siding panels you need for an exterior wall area.
Structure & systems
Wall Framing Calculator
Calculate how many wall studs you need from wall length and stud spacing.
Roof Pitch Calculator
Calculate roof pitch, angle and slope factor from rise and run.
Roofing Calculator
Calculate actual roof area and shingle bundles needed, accounting for pitch.
Stair Calculator
Calculate riser height, total run and stringer length for a staircase.
Deck Calculator
Calculate decking boards and joists needed for a deck.
Fence Calculator
Calculate how many fence posts and rails you need for a given length.
Retaining Wall Calculator
Calculate how many blocks you need to build a retaining wall.
Gutter Calculator
Calculate gutter length and downspouts needed from roof perimeter.
Asphalt Driveway Calculator
Estimate the tons of asphalt needed for a driveway or paved area.
Water Tank Capacity Calculator
Calculate the capacity of a cylindrical or rectangular water tank.
HVAC / BTU Calculator
Calculate the AC/HVAC size needed for a room based on area and climate.
Insulation Calculator
Find the required insulation thickness and volume for a target R-value.
Electrical Load Calculator
Calculate current draw and recommended breaker size from connected electrical load.