Free construction & home-improvement calculators

Concrete, gravel, paint, drywall, square footage and more — accurate estimates that run entirely in your browser. No sign-up, no upload, no limits.

Start with the Square Footage calculator →

How it works

Pick a calculator, enter your dimensions, and get instant material quantities — cubic yards, bags, sheets, gallons, tons. Every tool also shows an editable cost estimate so you can plug in your local price. Nothing you type is uploaded; the math happens on your device. New to estimating? Start with the guides, or jump into a ready-made project estimate.

Private by design

CubicCabin calculators run 100% in your browser. Your measurements and prices never leave your device, there's no account to create, and there are no limits on how much you use them.

Measurement

Square Footage CalculatorCubic Yard CalculatorCubic Feet CalculatorLinear Feet CalculatorSquare Feet to Cubic Yards Calculator

Concrete & Masonry

Concrete CalculatorConcrete Block CalculatorICF Block CalculatorBrick CalculatorMortar CalculatorConcrete Footing CalculatorConcrete Column CalculatorRebar CalculatorRetaining Wall CalculatorConcrete Stairs CalculatorDeck Mud CalculatorSelf-Leveling Concrete Calculator

Aggregates & Landscaping

Gravel CalculatorMulch CalculatorSand CalculatorTopsoil CalculatorCrushed Stone CalculatorPaver CalculatorPaver Sand CalculatorSod CalculatorFill Dirt CalculatorAsphalt CalculatorLimestone Calculator

Flooring

Flooring CalculatorTile CalculatorCarpet CalculatorLaminate Flooring Calculator

Walls, Drywall & Paint

Paint CalculatorDrywall CalculatorWallpaper CalculatorStucco CalculatorPrimer CalculatorBaseboard Calculator

Decking & Fencing

Decking CalculatorFence CalculatorDeck Stain CalculatorFence Post Calculator

Roofing & Siding

Roofing CalculatorRoof Pitch CalculatorSiding CalculatorSoffit CalculatorRafter Length CalculatorRoof Truss Calculator

Lumber & Framing

Board Foot CalculatorPlywood CalculatorStud CalculatorStair Calculator

HVAC & Energy

Air Conditioner BTU CalculatorHeating BTU CalculatorHeat Pump Sizing CalculatorMini Split Sizing CalculatorInsulation Calculator

Common questions

Are CubicCabin's calculators free?
Yes — every calculator is completely free with no sign-up, no account, and no usage limits.
Do my numbers get uploaded anywhere?
No. Everything runs in your browser, so the figures you enter never leave your device and nothing is stored on a server.
How accurate are the estimates?
The math is precise, but material yields and prices vary by product and region. Treat results as planning estimates and add a waste allowance before buying.