Construction & Home Calculators
Estimate materials and costs for any building or DIY project — concrete, square footage, paint, tile, gravel, roofing, and more. Avoid over-ordering and stay on budget with accurate, contractor-grade calculations.
BTU Calculator
Calculate how many BTUs needed to heat or cool a room based on size and insulation.
Concrete Volume Calculator
Calculate concrete volume for slabs, footings, columns, and steps in cubic yards or meters.
Gravel Calculator
Calculate how many tons or cubic yards of gravel you need for any project.
Mulch Calculator
Calculate how many cubic yards of mulch you need for any garden area.
Paint Coverage Calculator
Calculate how much paint you need for any room or surface.
Roofing Calculator
Calculate roofing materials needed for any roof area and pitch.
Square Footage Calculator
Calculate square footage for rooms, flooring, and landscaping.
Stair Calculator
Calculate stair rise, run, stringer length, and number of steps for code-compliant staircases.
Tile Calculator
Calculate the number of tiles needed for any floor or wall area with waste factor.
Voltage Drop Calculator
Calculate voltage drop and recommended wire gauge for any electrical run length and load.