Construction & Measurement Calculators

Start with measurements, convert units, and estimate materials for a home or outdoor project.

Area & volume

Area is measured in square units; volume adds a depth and uses cubic units. Use Area for individual shapes, Square Footage for multiple rooms, and Volume for geometric solids.

Square Footage Calculator

Add room areas and quantities, convert square units, and estimate cost per square foot.

Area Calculator

Calculate the area of six geometric shapes with conversions to common square units.

Volume Calculator

Calculate prism, cube, cylinder, sphere, and cone volumes in cubic units, liters, and US gallons.

Yards & landscaping

For a bed or path, measure length and width separately from depth. Cubic Yard gives the geometric volume. Gravel estimates weight using a density; Mulch converts volume to whole bags. Pool estimates water volume from inside dimensions and water depth.

Gravel Calculator

Estimate gravel volume and approximate weight from dimensions, density, and waste allowance.

Cubic Yard Calculator

Convert a rectangular bed, round bed, or known area and depth into cubic yards.

Mulch Calculator

Estimate mulch in cubic yards and bags for a rectangular bed, round bed, or measured area.

Pool Calculator

Find pool water volume in US gallons, liters or cubic units. Choose a rectangular, round or oval pool and enter actual water depths.

Concrete, asphalt & masonry planning

Slabs, pads, footings, and walls share a rectangular-volume calculation. Round columns use a cylinder. Concrete Calculator adds quantity, waste, bag-yield estimates, and an optional unit price. Verify product specifications and structural requirements before ordering. Masonry counts brick or block units from wall area, actual face dimensions and mortar joints. Asphalt estimates compacted mixture weight from thickness and supplier density.

Concrete Calculator

Estimate concrete for slabs, pads, footings, walls, and columns, with waste, bag yield, and cost.

Masonry Calculator

Estimate bricks or concrete blocks for a wall, including openings, mortar joints, multiple wythes and waste. Use preset or custom face dimensions.

Asphalt Calculator

Estimate asphalt mixture volume, order weight and optional material cost from paving area, compacted thickness and supplier density.

Interior finishing & insulation

Turn measured areas into a shopping estimate. Paint accounts for coats and coverage; Flooring rounds an area with waste to whole boxes. Start with net measurements so you do not count waste twice. Drywall estimates whole panels; Insulation uses the labeled package coverage for the selected product.

Paint Calculator

Estimate paint for walls or a measured area. Account for openings, coats, coverage, and whole containers before you buy.

Flooring Calculator

Calculate flooring boxes from room dimensions or a known area, with adjustable waste, package coverage, and optional material cost.

Drywall Calculator

Estimate drywall panel quantities for room walls and ceilings, with opening deductions, panel sizes, waste and optional material cost.

Insulation Calculator

Estimate packages of insulation batts, rolls or boards from coverage area, exclusions, labeled package coverage and allowance.

Materials: lumber

Board feet measure lumber volume. Use your supplier’s billable dimensions and price rather than treating board feet as linear feet or floor area. Framing produces a simple straight-wall stud and plate list, with its assumptions shown.

Board Foot Calculator

Calculate lumber board feet from thickness, width, length, and quantity. Compare unit systems and estimate an allowance and lumber cost.

Framing Calculator

Estimate studs and plate stock for a simple straight wall, with editable spacing, actual plate thickness and a transparent material list.

Structure & exterior layout

Explore stair rise and run, convert roof slope measurements, or estimate a straight fence run. These tools explain geometry and material counts; they do not approve a structural design. Roof Pitch converts slope measurements; Roof uses pitch to estimate roof surface and shingle quantities. Siding estimates packages for an exterior wall and optional gable.