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Countertop Slab Calculator

Estimate slab count from countertop area and slab coverage.

Use decimals when needed. This estimate updates live and is safe to tweak before you buy materials.

Minimum 1 ft. Commas or periods work for decimals.

Minimum 1 ft. Commas or periods work for decimals.

Minimum 10 sq ft/box. Use whole numbers for the clearest estimate.

Minimum 0. Use whole numbers for the clearest estimate.

Estimate updates automatically as you type.

Estimated slabs

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Buying guide

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.