Roofing Calculator

Calculate roofing materials and costs for shingles, metal, tile, and flat roof systems.

✓ 100% Free • No Signup Required • Unlimited Use

🏠For Homeowners: Get a quick cost range with just a few measurements. Perfect for budgeting and comparing contractor quotes.

feet
Length of roof surface
feet
Width of roof surface
Rise over run - affects material quantity and labor
Material choice significantly affects cost and lifespan
Enter your ZIP code to adjust costs for your region
Assumptions & Sources

Assumptions

  • Waste factor: 15% included for cuts, overlaps, and ridge caps.
  • Pitch factor: 6/12 pitch = 1.25x base area.
  • Labor rates: Based on 2025 national averages.
  • Tear-off: Assumes one existing layer for removal.

Last updated: January 2026

* Budget Planning Guide: These budget ranges are based on generalized industry data and may vary based on location, material quality, and local market conditions. Always obtain written bids from licensed contractors before making financial decisions.