Construction Calculators
Asphalt, sand, bitumen, and roofing calculators.
Asphalt CalculatorEstimate asphalt quantity in tons and cubic yards for driveways, roads, and parking lots.
Bitumen CalculatorEstimate bitumen quantity in kg, liters, and tonnes for road surfacing or waterproofing projects.
Sand CalculatorEstimate sand quantity in tons, cubic yards, and bags for construction or landscaping projects.
Paving CalculatorEstimate paving material (asphalt, concrete, or gravel) in tons or tonnes for any surface area.
Brick CalculatorCalculate how many bricks you need for any wall or patio. Supports US Standard, US Jumbo, and UK Standard brick sizes with waste factor and mortar estimate.
Gravel CalculatorCalculate how much gravel or crushed stone you need in tons and cubic yards for driveways, paths, and landscaping.
Paint CalculatorCalculate how many gallons of paint you need for any room, exterior, or custom area. Includes waste factor and optional cost estimate.
Rafter CalculatorCalculate roof rafter length, total rise, and roof angle from run and pitch values.
Roof Pitch CalculatorCalculate roof pitch from rise and run, or find the required rise from a target pitch. Converts between X/12, degrees, and percent slope.
Rafter Length CalculatorCalculate rafter length from run and rise using the Pythagorean theorem. Includes overhang option and total timber estimation.