Know the cost before you break ground.
Free home-improvement calculators that turn your measurements into materials, quantities, and a realistic budget — concrete, roofing, flooring, paint, landscaping, decks, and fences.
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Sample estimate · concrete slab
Material cost · 12 × 14 ft, 4" thick
- Concrete needed
- 1.23 yd³
- 80 lb bags
- 56
Most used
Featured calculators
Concrete
Concrete Slab Calculator
Calculate concrete for a slab in seconds. Enter length, width, and thickness to get cubic yards, bags needed, and an estimated cost.
Open calculatorRoofing
Roofing Shingle Calculator
Estimate roofing squares, shingle bundles, and cost. Enter roof footprint, pitch, and waste to size your shingle order.
Open calculatorPainting
Paint Calculator
Find out how many gallons of paint a room needs. Enter dimensions, openings, and coats to get square footage, gallons, and cost.
Open calculatorDecks & Fences
Deck Board Calculator
Calculate deck boards and linear feet from deck size, board width, and gap. Add waste to size your decking order and cost.
Open calculatorFraming & Lumber
Board Foot Calculator
Calculate board feet for any lumber order. Enter thickness, width, length, and piece count to get total board feet, linear feet, and estimated cost.
Open calculatorRoofing
Roof Pitch Calculator
Convert roof pitch between rise/run, degrees, and slope percent. Get the pitch multiplier and turn your roof footprint into true sloped roof area.
Open calculatorFraming & Lumber
Stud Calculator
Calculate how many studs a wall needs at 16 or 24 inch on center. Get the stud count with corners and openings, plate lumber, and estimated material cost.
Open calculatorLandscaping
Gravel Calculator
Work out how much gravel you need by area and depth. Get cubic yards, tons, bags, and an estimated delivered cost for driveways, paths, and drainage.
Open calculatorMeasuring & Conversions
Cubic Yard Calculator
Convert length, width, and depth to cubic yards. Get cubic feet, cubic meters, an approximate tonnage, and material cost for gravel, soil, or mulch.
Open calculatorBrowse by project
Calculator categories
Concrete
6Estimate concrete volume, bags, and ready-mix cost for slabs, footings, driveways, and more.
Roofing
3Size your roofing order in squares and bundles and estimate replacement cost by pitch and area.
Flooring
7Calculate flooring and tile quantities, waste, and material cost for any room.
Painting
5Work out how much paint a room needs based on wall area, openings, and number of coats.
Landscaping
10Estimate bulk materials like gravel and mulch by area and depth, in yards, tons, or bags.
Decks & Fences
4Plan decking and fencing materials — boards, posts, panels, and linear feet — with cost estimates.
Interior & Insulation
5Estimate drywall sheets, insulation, and trim for walls, ceilings, and attics, with material counts and cost.
Masonry
5Estimate brick and block quantities for walls, veneers, and retaining walls, with waste and material cost.
Heating & Cooling
3Size air conditioners and heating loads for a room by area, sun exposure, and occupancy.
Framing & Lumber
5Count studs, joists, rafters, and sheathing, convert lumber to board feet, and price a framing package.
Siding & Exterior
3Estimate siding squares, gutter and downspout runs, soffit and fascia, and the trim that goes with them.
Electrical & Solar
4Size conductors, check voltage drop, pick a generator, and estimate the solar array your usage needs.
Plumbing & Water
2Size a water heater to your household and work out pool and tank volumes in gallons.
Budgeting & ROI
4Build a renovation budget with contingency, estimate financing payments, and check what a project returns at resale.
Measuring & Conversions
3Convert volumes to cubic yards, add and subtract feet-and-inches measurements, and work out slope and grade.
Learn before you spend
Popular cost guides
Cost Guide
Basement Finishing Cost: 2026 Price Per Square Foot
What finishing a basement costs in 2026: price per square foot by finish level, stage-by-stage budgets, egress and ceiling height rules, and resale value.
Read guideCost Guide
Asphalt Driveway Cost: 2026 Price Per Square Foot & Ton
What an asphalt driveway costs in 2026: installed price per square foot and per ton, overlay vs full replacement, base depth, and 20-year cost of ownership.
Read guideCost Guide
Concrete Cost Per Yard: 2026 Ready-Mix Prices
What ready-mix concrete costs per cubic yard in 2026, plus short-load fees, PSI and admixture add-ons, pump truck pricing, and the bags-versus-truck math.
Read guideWhy trust our estimates
Numbers you can actually stand behind
Transparent math
Every calculator shows the exact formula and a worked example — no black boxes.
Fast & private
Results compute instantly on your device. Nothing you type is sent anywhere.
Local-aware
Cost calculators adjust to regional pricing so your budget reflects where you live.
Built for real quotes
Take your quantities to contractors and compare bids on an even footing.
We publish where every constant comes from, how often we re-check prices, and exactly what our estimates leave out. Read the methodology.
Know your market
Cost by state
A quote that looks high in Alabama is a bargain in Massachusetts. These datasets show what 24 common projects run per unit in all 50 states and DC — so you can tell whether the number in front of you is normal for where you live.
- Asphalt Driveway cost by state
- Baseboard cost by state
- Brick cost by state
- Carpet cost by state
- Concrete Cost cost by state
- Concrete Footing cost by state
- Deck Boards cost by state
- Drywall cost by state
- Exterior Paint cost by state
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Occasional guides on budgeting renovations and getting better contractor quotes.
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