Construction & Home

Estimate sloped roof area, roofing squares and bundles from footprint, pitch and a complexity allowance.

Estimate compacted asphalt volume and tonnage from paving area, thickness, density and ordering allowance.

Estimate wallpaper strips and full rolls using wall height, perimeter, roll size, trimming and pattern repeat.

Estimate net insulation area and packages while checking R-value, cavity and product coverage separately.

Calculate a rectangular room’s floor, ceiling, wall area, perimeter and volume from inside dimensions.

Estimate a room air conditioner’s preliminary BTU and tonnage range from dimensions and major load factors.

Total rectangular door and window opening area and perimeter while distinguishing unit and rough-opening sizes.

Estimate a preliminary room heating or cooling load from volume, temperature difference and major adjustments.

Use our Elevation Grade Calculator to find slope ratio, percent grade, angle of elevation, and 1 in N ratio from rise and run with mixed-unit support.

Roof Pitch Calculator helps you find roof pitch, slope, angle, and rise-to-run values quickly for roofing, planning, and construction work.

Square Footage Calculator helps you measure room area, total square feet, and material cost quickly with accurate results.

Tank Volume Calculator helps you find tank capacity in gallons, liters, and cubic units with fast, accurate results.