Free tools
Builder tools that do the math for you
Free calculators for the everyday questions on a site: feasibility, budgets, slope, fill, and squaring. No sign-up required.
Land Feasibility Quiz
A scored ~5-minute readiness check across slope, utilities, access, and constraints.
Development Budgeting Tool
Location-specific estimates for permits, utility connections, and site development.
Slope Calculator
Slope, grade, and angle from elevation and distance.
Gravel / Dirt Calculator
Cubic yards, tonnage, and truckloads for fill and gravel.
Square Check
Diagonal and squaring checks for foundations and layouts.
Dirt Balance Calculator
Excavation volume, fill needs, and truck loads for balancing a site.
Want a second set of eyes on a lot?
Run a full SiteFacts screening on any parcel in the app.