About
Roofing Calculator is a free, browser-based set of tools for planning roof projects and checking measurements before work begins. It helps estimate roof pitch, roof area, shingle quantities, metal roofing quantities, rafter length, and rough replacement cost ranges. The calculators are useful for homeowners, contractors, estimators, and property managers who need a quick way to understand roof geometry and project scope. Users can work through the tools individually to sanity-check contractor bids, compare material needs, or prepare for a reroofing conversation. The results are estimates for planning only and are not a substitute for an onsite inspection or professional assessment. This makes the site practical for early-stage budgeting, material planning, and basic roof takeoff calculations across common residential roofing tasks.