Marble Countertop Square Foot Calculator

Easily estimate the square footage of your marble countertops — including islands, L-shaped layouts, and overhangs. Use this free calculator to get an instant estimate before requesting a quote.

How to Use the Marble Calculator

  1. Measure the length and width of all marble countertop sections.
  2. Include islands, peninsulas, and L-shaped corners.
  3. Enter your measurements into the calculator above.
  4. Your total marble square footage will appear instantly.

Tip: Marble slab yield and veining are accounted for automatically.

Why Accurate Marble Square Footage Matters

  • Estimate material needs and reduce waste.
  • Get a realistic cost estimate before contacting a fabricator.
  • Plan for seams, overhangs, and island pieces.
  • Avoid unexpected extra costs during installation.

Marble-Specific Guidance

  • Marble is a natural stone with delicate veining; accurate measurement ensures correct slab yield.
  • Edge profiles and sink cutouts may slightly increase material needed.
  • Complex layouts may require multiple slabs; the calculator accounts for this automatically.

Frequently Asked Questions

How accurate is the marble countertop calculator?

It provides a reliable square footage estimate, though final material use may vary depending on edges, seams, and layout complexity.

Do I need professional measurements for marble?

Basic measurements are sufficient for estimates. Fabricators may verify dimensions before fabrication.

Does this calculator account for overhangs and islands?

Yes — all islands, peninsulas, L-shaped layouts, and overhangs are included in the estimate.

Is this tool free?

Yes — always free for homeowners and contractors alike.

Trusted by Thousands of Homeowners

“This marble calculator made planning our countertops easy and accurate.” — F. Chiamero

“Saved time and money before contacting a local fabricator.” — T. Jones

Common Applications for Marble Countertops

Marble is a timeless and elegant natural stone, ideal for a variety of surfaces in both residential and commercial settings. Common applications include:

Tip: While marble is beautiful, it is porous and can stain or etch with acidic substances. Seal your marble surfaces regularly to maintain their appearance.

For detailed guidance on marble care and maintenance, visit the Natural Stone Institute.

Related Tools & Guides

Kitchen Designer Tip: Choose the Material After the Layout Is Final

Most people pick granite, quartz, or marble first — designers do the opposite. Why it matters: Large islands, waterfalls, and L-shapes affect slab yield, seams, and cost Some materials hide seams well (quartz), others highlight them (marble, quartzite) Edge profiles and overhangs can change what materials are practical.
Countertop Designer