Construction & Materials
Area, volume, concrete, gravel, lumber, paving, and roofing calculators with practical unit support and editable material assumptions.
Area, Volume, and Coverage
Square footage, cubic yards, concrete, gravel, and mulch estimates.
Square Footage Calculator
Area for common shapes
Cubic Yard Calculator
Volume in cubic yards for common shapes
Concrete Calculator
Concrete volume and bag estimates
Gravel Calculator
Gravel volume, weight, and tonnage
Mulch Calculator
Mulch volume and bag count estimator
Lumber and Paving
Board feet and asphalt tonnage from dimensions.
Board Foot Calculator
Lumber board feet and cost estimator
Asphalt Calculator
Asphalt volume, weight, and tonnage
Roofing
Roof pitch, slope, and rafter length estimates.
Roof Pitch Calculator
Pitch, slope, angle, and rafter length