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Countertop Calculator

Estimate countertop slab area, edge profiling, cutouts, and installed cost for any kitchen layout

Units

Slab Area

27.5 sq ft

Edge

14 ft

Slab

$2,063

Total

$3,098

Countertop Area

27.5

sq ft (with waste)

Cost Breakdown

Slab Material$2,063
Edge Profiling$210
Installation$825
Total$3,098

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Example Calculations

1L-Shaped Kitchen (quartz, 12 ft run)

Inputs

Run Length12 ft
Depth25 in
MaterialQuartz
Edge14 ft

Result

Total Cost$3,630

12 ft x 25 in = 25 sq ft, +10% waste = 27.5 sq ft. Quartz at $75/sqft + edge + install.

2Bathroom Vanity (granite, 5 ft)

Inputs

Run Length5 ft
Depth22 in
MaterialGranite
Cutouts1

Result

Total Cost$1,260

5 ft x 22 in = 9.2 sq ft, +10% = 10.1 sq ft at $60/sqft + install.

Frequently Asked Questions

Q

How do you calculate countertop square footage?

Multiply the total run length (in feet) by the counter depth (typically 25 inches for standard or 26-27 for overhang). Add 10% for waste from seams, irregular cuts, and template adjustments.

  • Standard depth: 25 in (25.5 in including front overhang)
  • Island counters: often 36-42 in deep for seating overhang
  • L-shaped layouts: measure each run separately and sum the areas
  • Cutouts for sinks/cooktops do not reduce material needed since slabs are sold whole
Q

How much do countertops cost per square foot?

Laminate costs $20-$40/sq ft installed, butcher block $40-$65, granite $50-$100, quartz $65-$120, and marble $80-$150+ installed. These include material, templating, fabrication, and installation.

  • Laminate: $20-$40/sq ft, most budget-friendly, wide variety of patterns
  • Butcher block: $40-$65/sq ft, warm look, requires regular oiling
  • Granite: $50-$100/sq ft, natural stone, each slab is unique
  • Quartz: $65-$120/sq ft, engineered, non-porous, most consistent appearance
  • Marble: $80-$150/sq ft, premium look, requires sealing, stains more easily
MaterialCost/sqftMaintenanceDurability
Laminate$20-$40LowFair
Butcher Block$40-$65HighGood
Granite$50-$100MediumExcellent
Quartz$65-$120LowExcellent
Marble$80-$150HighGood
Q

What is the standard countertop depth?

Standard kitchen countertop depth is 25-25.5 inches from the wall to the front edge. This accommodates standard 24-inch deep base cabinets with a 1-1.5 inch front overhang.

  • Standard depth: 25-25.5 in (24 in cabinet + 1-1.5 in overhang)
  • Breakfast bar: 12-18 in additional overhang for seating
  • Island with seating: 36-42 in total depth
  • Bathroom vanity: 20-22 in depth standard
Q

How much does edge profiling cost?

Standard eased or beveled edges are included in most quotes. Premium profiles like ogee, bullnose, or waterfall edges add $10-$30 per linear foot. A typical kitchen has 10-15 linear feet of finished edge.

  • Eased/beveled: usually included in base price
  • Half bullnose: $10-$15/lf, most popular upgrade
  • Ogee or dupont: $15-$25/lf, traditional profile
  • Waterfall/mitered: $25-$50/lf, modern look, requires extra material

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Last Updated: Mar 19, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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