Figuring out how much you'll spend on roofing materials can feel tricky with all the options like asphalt shingles, metal panels, or clay tiles. A roofing material cost calculator lets you plug in your roof's square footage and pick your preferred material, then it instantly gives you a rough estimate for the supplies you'll need. It's handy for budgeting your project or comparing costs between different materials before you commit to a purchase. roofing material cost calculator 12