Construction & DIY
Materials, areas, volumes and project planning.
Asphalt Calculator
Estimate the tonnage of asphalt for a driveway or path.
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Board Feet Calculator
Calculate lumber board feet and cost from board dimensions.
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Brick Calculator
Estimate how many bricks a wall needs, with a wastage allowance.
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BTU Calculator (Heating & Cooling)
Estimate the BTU capacity a room needs for cooling or heating.
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Concrete Volume Calculator
Estimate concrete volume and bags needed for slabs and columns.
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Drywall Sheet Calculator
Work out how many drywall sheets an area needs, with a wastage allowance.
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Fence Calculator
Work out the panels and posts needed for a fence run.
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Gravel & Aggregate Calculator
Estimate the volume, weight and bags of gravel or aggregate you need.
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Paint Coverage Calculator
Estimate how much paint you need from area, coats and coverage.
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Rebar Calculator
Estimate rebar count and total length for a slab grid.
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Roof Pitch Calculator
Convert roof rise and run into pitch angle, slope factor and grade.
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Square Footage Calculator
Measure floor area, convert between units and estimate material cost.
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Stair Calculator
Work out steps, riser height, total run and pitch for a staircase.
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Tile Calculator
Work out how many tiles you need, including a wastage allowance.
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Wallpaper Calculator
Find how many rolls of wallpaper a room needs, allowing for the pattern.
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