Calculator

Countertop Slab Calculator

Estimate slab count from countertop area and slab coverage.

Use decimals when needed. Your estimate updates instantly and is safe to tweak before purchasing.

Read the matching guide to avoid common material ordering mistakes.

Countertop Slab Calculator FAQ

Do cutouts affect slab count?

Yes, sink and cooktop cutouts can increase waste in layout planning.

Should backsplash be included?

Add backsplash separately if it is from the same slab material.