Free roofing calculator

Roof Replacement Calculator

Create a replacement planning range and review the cost assumptions.

This guided calculator uses the same underlying model as our main cost tool, with a replacement-specific checklist.

Before calculating

Find the approximate roof area, current material, number of stories, pitch and whether old layers must be removed.

How to use the result

Treat the output as a planning aid. Product coverage, building geometry, local codes and contractor scope can change the real requirement or price.

A calculator gives you a planning range. Compare local quotes for a price based on your roof, location and project details.

No obligation. Availability and matching depend on location and project details.

Is this a professional measurement or financing offer?

No. It is an educational planning tool only.

What should I do with the result?

Use it to prepare questions and compare written contractor quotes or lender disclosures.