Construction Calculators

Free online calculators for building, remodeling, and home improvement projects. Estimate materials, quantities, and dimensions.

Area & Measurement

Square Footage Calculator

Calculate the area of rooms and spaces in square feet or square meters. Supports rectangle, circle, triangle, and L-shapes.

Staircase Calculator

Calculate rise, run, number of steps, and stringer length from total height. Building code compliant.

Concrete, Gravel & Mulch

Concrete Calculator

How much concrete for a slab, footing, or column. Get cubic yards, cubic meters, and number of bags needed.

Gravel Calculator

Calculate volume and weight of gravel for driveways, paths, and landscaping. Cubic yards and tons.

Mulch Calculator

How much mulch for garden beds. Calculate cubic yards and number of bags from area and depth.

Walls, Floors & Roofing

Paint Calculator

How much paint for a room. Accounts for doors, windows, and paint coverage per gallon.

Tile Calculator

How many tiles for a floor or wall. Factors in tile size, grout gap, and waste percentage.

Flooring Calculator

Calculate how much flooring material you need. Supports hardwood, laminate, vinyl, and carpet.

Drywall Calculator

How many drywall sheets for a room. Includes joint compound, tape, and screw estimates.

Roofing Calculator

Roofing squares needed based on roof dimensions and pitch. Includes material estimates.

Fencing

Fence Calculator

Calculate posts, rails, and pickets for your fence. Supports wood, vinyl, and chain link styles.

How to Use These Calculators

Each calculator provides results in both imperial (feet, yards, gallons) and metric (meters, liters) units. Enter your project dimensions, and the calculator will estimate the materials you need, including a recommended waste factor to ensure you buy enough.

These calculators provide estimates to help with planning and budgeting. Always verify quantities with your contractor or supplier before purchasing materials, as site conditions and project requirements can vary.