Plan the whole job—not just one measurement.
Move from quantities to purchasing and cost estimates with 480 construction-related calculators organized around real projects.
- 1Measure the job
- 2Calculate materials
- 3Add waste and labor
- 4Review the total cost
Smart Construction Calculators
Our most complete tools include multiple results, material estimates, costs and practical guidance.
Concrete Calculator
Calculate concrete volume for slabs, footings, or circular pads.
Open calculator → SMARTBoard Feet Calculator
Calculate lumber board feet from thickness, width, length, and quantity.
Open calculator → SMARTDrywall Sheet Calculator
Estimate 4×8 drywall sheets from wall area and waste.
Open calculator → SMARTRoof Shingles
Use the Roof Shingles for roofing planning. Enter Roof area (ft²) and Waste (%) to get a clear result, formula explanation, and practical checks.
Open calculator → SMARTPaint Calculator
Estimate paint needed from wall area and coverage rate.
Open calculator → SMARTDeck Board Quantity Calculator
Calculate deck board quantity with clear inputs, formula guidance, and practical result checks.
Open calculator → SMARTFence Post Calculator
Estimate fence posts from total run and spacing.
Open calculator → SMARTConstruction Cost Per Square Foot Calculator
Calculate construction cost per square foot with clear inputs, formula guidance, and practical result checks.
Open calculator → SMARTProject Cost With Contingency
Calculate project cost with contingency with clear inputs, formula guidance, and practical result checks.
Open calculator →Find tools by stage of the job
Each collection keeps related calculations together so you can move through a project without starting another search.
Foundation & Concrete44 tools
Framing & Lumber14 tools
Decks, Fences & Outdoor Projects10 tools
Roofing & Exterior41 tools
Walls & Finishes32 tools
Electrical & HVAC103 tools
Job Cost & Planning69 tools
More Construction Tools167 tools
A better estimate starts with better inputs.
Measure each project section separately, confirm product coverage with the supplier, and include waste, delivery, taxes and labor before setting the budget.