Construction & Home Calculators
Explore calculators for bulk materials, framing, interior projects, electrical work, landscaping, and home improvement. Tools are grouped by purpose so you can quickly find the calculation you need.
20 of 20 calculators shown
Ground & Paving Materials
6 calculatorsEstimate bulk materials for base layers, landscaping beds, paving, and roadways by area, volume, or weight.
Gravel Calculator
Gravel volume and weight required for a base layer, road, or path.
Volume = Length × Width × Depth Open calculator →Topsoil Calculator
aka Top Soil CalculatorEstimate the volume of topsoil needed for garden beds, lawn leveling, or other landscaping areas.
Volume = Length × Width × Depth Open calculator →Sand Calculator
Volume and weight of sand needed for a pit, base, or paver joints.
Volume = Length × Width × Depth Open calculator →River Rock Calculator
The amount of river rock required to cover a landscaping bed is measured in bags or tons.
Volume = Coverage Area × Depth Open calculator →Asphalt Calculator
Estimate asphalt quantity from paved area, layer thickness, and material density.
Tons = Area × Thickness × Density Open calculator →Bitumen Calculator
The amount of bitumen required to seal or surface a certain area.
Bitumen (kg) = Area × Rate per m² Open calculator →Framing & Structural
6 calculatorsPlan common framing and structural measurements for roofs, walls, stairs, lumber, and material lengths.
Roof Pitch Calculator
Rise and run data are used to calculate roof pitch and angle.
Pitch = Rise ÷ Run Open calculator →Rafter Calculator
Estimate rafter length from roof run and pitch angle.
Rafter Length = Run ÷ cos(Pitch Angle) Open calculator →Stud Calculator
Estimate the number of wall studs from wall length and on-center spacing.
Studs = (Wall Length ÷ Spacing) + 1 Open calculator →Board Foot Calculator
Board feet of lumber from thickness, width, and length dimensions.
Board Ft = (T × W × L) ÷ 144 Open calculator →Stair Calculator
Estimate stair step count and riser dimensions from the total rise and layout.
Riser Height = Total Rise ÷ Number of Steps Open calculator →Linear Feet Calculator
The total linear feet of material required based on the area and width of the board.
Linear Ft = Total Length of Material Open calculator →Interior & Building Materials
4 calculatorsEstimate sheet materials, masonry quantities, and fixture spacing for interior and building projects.
Drywall Calculator
Estimate drywall sheet quantity from wall or ceiling area and sheet coverage.
Sheets = Wall Area ÷ Sheet Area Open calculator →Plywood Calculator
Estimate plywood sheet quantity for a wall, roof deck, subfloor, or similar surface.
Sheets = Area ÷ 32 sq ft Open calculator →Brick Calculator
Estimate brick quantity from wall area and the assumed number of bricks per square foot.
Bricks = Wall Area × Bricks per sq ft Open calculator →Recessed Lighting Calculator
Estimate a starting fixture count and spacing layout for recessed lighting.
Fixtures = Room Area ÷ Spacing² Open calculator →Electrical & Outdoor
4 calculatorsElectrical conversions and planning tools for wiring, fencing, and pool maintenance.
Voltage Drop Calculator
Voltage lost over a wire run based on gauge, current, and length.
VD = (2 × K × I × L) ÷ CM Open calculator →Watts to Amps Calculator
At a specific voltage, convert power in watts to current in amps.
Amps = Watts ÷ Volts Open calculator →Fence Cost Calculator
Total cost of fence based on labor rate, materials, and linear feet.
Cost = Linear Ft × Cost per Ft Open calculator →Pool Salt Calculator
Estimate the amount of salt needed to move a pool from its current salinity toward a target level.
Salt (lbs) = Gallons × (Target − Current PPM) × 0.00834 Open calculator →No calculators match that search. Try a different word — e.g. “gravel,” “stud,” or “voltage.”
Use calculator results as planning estimates
Construction quantities depend on dimensions, material specifications, waste, local practice, and project conditions. Measure carefully, keep units consistent, and use the individual calculator page to review its assumptions before purchasing materials or making installation decisions.
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