Practical project tools • No sign-up required • US measurements

FREE HOME PROJECT CALCULATORS

Good projects start with better measurements.

Calculate what you need before your next trip to the hardware store. Simple, transparent tools for decking, fencing, landscaping and roofing.

Browse free calculators How we calculate ↗

✓ No account needed✓ Clear formulas✓ US units

◎13 purpose-built toolsLess guesswork, more planning

▤Understand the numbersSee formulas and assumptions

◇Built for US projectsFeet, inches, cubic yards & bags

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Popular project calculators

Practical starting points for your most common home projects.

View all calculators ↗

Roofing Roof Pitch Calculator Convert rise and run into pitch, angle and slope factor. Free calculator2 min → Decking Deck Material Calculator Estimate deck boards, joist positions and fasteners. Free calculator4 min → Fencing Fence Material Calculator Plan posts, spans, rails and fence pickets. Free calculator3 min → Landscaping Driveway Gravel Calculator Estimate gravel volume, weight and material cost. Free calculator2 min → Fencing Fence Post Concrete Calculator Find concrete bag quantities for post holes. Free calculator2 min → Landscaping Paver Base Calculator Plan aggregate and bedding sand for a patio. Free calculator3 min → Roofing Roof Area Calculator Estimate a simple gable roof surface and roofing squares. Free calculator3 min → Landscaping Paver Calculator Count how many pavers to order, including joints and waste. Free calculator3 min → Landscaping Patio Material Calculator One list for pavers, base gravel and bedding sand. Free calculator4 min → Landscaping Mulch and Topsoil Calculator Convert bed size and depth into cubic yards and bags. Free calculator2 min →

BROWSE BY PROJECT

What are you working on?

Board quantities, spacing and material planning for outdoor decks.

Explore calculators ↗╫Fencing

Fence lengths, pickets, concrete and practical material estimates.

Explore calculators ↗▦Landscaping

Driveways, paver patios, mulch, topsoil and landscape walls.

Explore calculators ↗⌂Roofing

Roof geometry, area and measurement conversions.

Explore calculators ↗

NUMBERS YOU CAN TRACE

No magic numbers.
Just useful math.

Every tool explains its inputs, calculation method and limitations. Edit the assumptions to reflect the materials you're buying and check the result against your supplier's guidance.

Read our methodology →

01

Measure your project

Enter dimensions in familiar US units.

02

Adjust your materials

Choose spacing, depths, yields or waste as needed.

03

Plan with confidence

Copy an estimate and verify before ordering.