Countertop Costs

Countertop Costs

Countertop Measure and Price Calculator

Enter your layout, cutouts, backsplash and edge profile once. See the math for your square footage, an estimated slab count per material, and installed cost ranges for every common countertop material side by side, each figure sourced and dated. No form, no email required.

Cost data last checked September 29, 2026.

1. Layout

You measured each run all the way into the corner. We subtract the corner square once per corner so it is not counted twice.

Default 25.5 in (Caesarstone, HomeGuide). Includes the front overhang.

2. Island or peninsula

Default 37.5 in (25.5 in counter depth plus a 12 in seating overhang, both sourced). Enter your real depth.

3. Backsplash

4. Edge profile

5. Cutouts

6. Old counters and optional extras

Your square footage

Countertop area: 52.48 sq ft (we removed 4.52 sq ft counted twice at the corner). Finished edge: 32.0 linear ft. 4 in backsplash: 18.0 linear ft.

What to check before you order

  • Granite: a run is longer than the smaller published slab length, so a seam is likely on that run (or a jumbo slab, where available).
  • Marble: a run is longer than the smaller published slab length, so a seam is likely on that run (or a jumbo slab, where available).
  • Soapstone: a run is longer than the smaller published slab length, so a seam is likely on that run (or a jumbo slab, where available).
  • Seating overhang looks like it is over 10 in on stone. Alpine Stones says an overhang beyond about 10 in on 3 cm stone needs support brackets (optional line, $200 to $700).
  • Laminate cannot support an undermount sink (Alpine Stones). If you are considering laminate, use a drop-in sink instead.

Installed cost by material

MaterialLowTypicalHighSlabs needed
Laminate$1,450$2,950$6,250Made to order
Porcelain slab$3,250$5,050$8,350
standard: 2
large: 2
Soapstone$3,800$5,800$8,900
small: 2 to 3 (1 seam)
large: 1 to 2
Quartz (engineered)$3,250$6,600$12,550
standard: 2
jumbo: 2
MarbleNeeds sealing, $100 to $350 per treatment (not in the total)$2,750$6,600$12,550
small: 2 to 3 (1 seam)
large: 2
Solid surface (Corian and similar)$3,250$6,600$9,950Made to order
Butcher block (wood)$2,750$6,600$9,950Made to order
Concrete$3,250$6,600$11,250Made to order
GraniteNeeds sealing, $100 to $350 per treatment (not in the total)$3,250$7,500$15,200
small: 2 to 3 (1 seam)
large: 1 to 2
QuartziteNeeds sealing, $100 to $350 per treatment (not in the total)$4,050$8,700$13,600
small: 2
large: 1 to 2

Tap a row to see its full line-item breakdown. Low, typical and high are rounded to the nearest $50.

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How we got these ranges

Every installed price range on this page comes from national cost guides (HomeGuide, Fixr, HomeAdvisor, Bob Vila, Homewyse, Angi and others), checked September 29, 2026. Where guides disagree, we kept the disagreement instead of picking one: the "typical" figure is a published national average where one exists (for example Fixr's average project cost divided by its stated square footage), and otherwise the midpoint of the typical band, labeled in our data file as our own calculation.

Homewyse consistently runs higher than every other guide because it prices a fixed 129 square foot "default" job rather than a range of real jobs, so we did not treat it as typical, only as part of the high end. HomeGuide's page dates say "2026" in the title but its underlyingdateModified field is often from 2023 or 2024; we show HomeGuide's figures anyway because the dollar ranges match what Fixr and HomeAdvisor publish today, and we checked the live page on the date shown. This Old House's stone cost ranges (for example "$10 to $140 per square foot installed" for granite) read like material-only pricing tables rather than true installed cost, so we left them out rather than blend in a number that does not match its own label.

This calculator gives national ranges, not a local quote. We found no sourced regional cost multiplier worth publishing, so no city adjustment is applied anywhere on this page.

How slabs are sold

Engineered quartz and natural stone are sold as full slabs, not by the square foot cut to order. A standard quartz slab runs about 120 by 55 in; a jumbo slab runs about 130 by 64.5 in and yields roughly 20% more usable area (Fixr, Caesarstone). Granite slabs vary more by block, commonly 108 to 132 in long and 60 to 78 in wide (Nova Tile & Stone). Whatever area your layout does not use on a slab is waste. That is why the calculator shows a slab count, not just a square footage: two kitchens with the same area can need a different number of slabs depending on how the pieces fit.

Laminate, solid surface and butcher block are sold as sheets or set-length pieces rather than natural-stone-style slabs, and concrete is cast to order, so this calculator does not estimate a slab count for those materials; it shows "made to order" instead.

When a seam happens

A seam is forced whenever a single continuous run is longer than the slab you are using. National guides fold seam labor into the installed price rather than charging for it separately (Fixr says seams are filled with color-matched epoxy as part of the job), so this calculator never adds a per-seam dollar charge to the total. It does flag when your layout is likely to force one, and it flags when an island or peninsula is deeper than the slab width you would need, which calls for a jumbo slab or a seam of its own. Exactly where a seam lands on the finished counter is a decision your fabricator makes from the real slab, not something a calculator can know in advance.

What this calculator will not tell you

Questions people ask

How do I measure my countertops for this calculator?

Measure each straight section as its own rectangle: length along the wall, times depth (front to back). Standard depth is 24.5 to 25.5 in, including a 1 to 1.5 in front overhang (Caesarstone, HomeGuide). In an L or U kitchen, measure the first run all the way into the corner, then measure the next run starting from the front edge of the first run, so the corner square is not counted twice (EdStone, Caesarstone). If you already measured that way, pick "the fabricator way" in the calculator; if you measured each wall run all the way to the corner on both sides, pick "wall to wall" and the calculator removes the double-counted corner for you.

Why does an L-shape or U-shape subtract a square at the corner?

When you measure each wall run all the way into the corner, the square where the two runs meet gets counted twice, once in each run's length times depth. EdStone's fabricator guide is direct about it: "Make sure you don't count the corner twice." The calculator subtracts depth times depth once for every inside corner: once for an L-shape, twice for a U-shape.

How many slabs will I need, and why is it shown as a range?

The calculator estimates slab count two ways and shows the range between them: a lane-packing estimate using real manufacturer slab sizes for your material (for example a standard 120 by 55 in quartz slab versus a 130 by 64.5 in jumbo, per Fixr and Caesarstone), and a waste-factor estimate (total area times 1.10 for a straight run, or times 1.15 to 1.25 for an L, U or island layout, per Granite Selection and EdStone), divided by slab area and rounded up. The two methods rarely agree exactly, and neither one tells you exactly where your fabricator will put a seam. That decision depends on the specific slab and the fabricator's layout on the day of templating, which this calculator cannot see.

Does a sink or cooktop cutout change my square footage?

No. AMF Granite and EdStone both say the exact sink size does not matter for a quote: the stone for that section is still bought and cut as one piece, and the cutout is priced as its own labor line, not subtracted from the area. That is why this calculator prices sink and cooktop cutouts as separate line items instead of adjusting square footage.

When does a countertop need a seam?

A seam is likely whenever a single run is longer than the slab you chose. Standard quartz slabs run about 120 in long (Fixr); a jumbo slab (about 130 to 132 in, Cambria, Caesarstone) can avoid a seam on a run that would otherwise need one. Natural stone slabs vary more: granite runs 108 to 132 in long depending on the block (Nova Tile & Stone). The calculator flags this when a run is longer than the smaller of the two slab sizes shown for a material, but it cannot say exactly where the seam will fall; that is a fabricator decision made from the actual slab.

Does quartz or granite need sealing?

Granite, quartzite and marble are natural stone and are typically sealed; HomeGuide prices a sealing treatment at $200 to $350 and Bob Vila at $100 to $200, though sources disagree on how often (HomeAdvisor says yearly, Fixr says every 3 to 5 years), so this calculator shows it as a separate ongoing note, never added to the total. Quartz is engineered and does not need sealing (Bob Vila). Soapstone is not sealed; it is periodically oiled instead, and no cost guide gave a sourced figure for that, so none is shown.

Where these numbers come from