Countertop Cost Calculator
A countertop cost calculator multiplies length × depth by material + labor per sq ft. A 10 × 2 ft run at $55 + $25 per sq ft is 20 sq ft and costs $1,600.
Countertop cost calculator: how the estimate works
This countertop cost calculator multiplies counter length × depth to get square feet, then applies two rates: total cost = area × material per sq ft + area × labor per sq ft. With the defaults, a 10 ft run at 2 ft deep is 20 sq ft, so $55 material and $25 labor per sq ft give $1,100 + $500 = $1,600.
All four boxes are editable. Enter your fabricator’s rates, or try different materials to see how the total moves.
What the two rates cover
Material is the slab or sheet itself. For stone and quartz, it is the share of the slab your counters use, plus the offcuts the shop can’t resell.
Labor covers templating, cutting, polishing the edges, delivery, and setting the tops on the cabinets. Some shops include basic seams and one sink cutout in this rate; others itemize them.
Both rates multiply the same area, so the area is the number to get right.
Worked examples
- The default: one straight 10 ft run, 2 ft deep
- Area: 10 × 2 = 20 sq ft
- Material: 20 × $55 = $1,100
- Labor: 20 × $25 = $500
- Total: $1,600
- L-shaped kitchen: 10 ft + 8 ft runs at 25.5 in deep, same rates
- Length: 10 + 8 = 18 ft
- Depth: 25.5 ÷ 12 = 2.125 ft
- Area: 18 × 2.125 = 38.25 sq ft (the calculator rounds the display to 38)
- Material: 38.25 × $55 = $2,104
- Labor: 38.25 × $25 = $956
- Total: $3,060
- Kitchen island: 6 ft × 3.5 ft with a seating overhang
- Area: 6 × 3.5 = 21 sq ft
- At the same $55 + $25 rates: $1,155 + $525 = $1,680
An island of only 21 sq ft costs almost as much as the 20 sq ft wall run, because both prices are driven by area. Islands often need a whole slab to avoid a seam, which can push the material rate up.
Countertop sizes to know
| Item | Typical size | Notes |
|---|---|---|
| Kitchen counter depth | About 25.5 in | 24 in cabinet + about 1.5 in overhang |
| Bathroom vanity depth | About 21–22 in | Vanity cabinets are shallower |
| Bar or seating overhang | About 12 in or more | Larger overhangs may need brackets |
| Stone slab thickness | 2 cm or 3 cm | 3 cm is common in kitchens |
| Backsplash, 4 in strip | Length × 0.33 ft | Often priced separately |
Material comparison
| Material | Relative cost | Care | Notes |
|---|---|---|---|
| Laminate | Lowest | Low; avoid heat and knife cuts | Often sold pre-formed |
| Butcher block | Low to moderate | Oil regularly | Can be sanded and refinished |
| Solid surface | Moderate | Low; scratches can be buffed | Seams can be nearly invisible |
| Granite | Moderate to high | Many types need periodic sealing | Each slab is unique |
| Quartz | Moderate to high | Low; non-porous | Avoid direct hot pans |
| Concrete | Varies | Sealing needed | DIY volume: concrete countertop calculator |
How to measure
- Measure along the back wall for each run, in feet.
- Measure the depth from the wall to where the front edge will sit, including the overhang.
- Add islands and peninsulas as their own rectangles.
- List the extras: number of sink and cooktop cutouts, edge style, and backsplash height.
The square footage calculator is handy for adding several runs together.
Mistakes to avoid
- Using cabinet depth. The counter is deeper than the cabinet. Using 24 in instead of 25.5 in understates a long kitchen by several square feet.
- Forgetting the backsplash. A full-height stone backsplash can add as much area as a counter run.
- Ignoring slab yield. Small kitchens can still need a full slab. Ask whether the quote is by square foot or by slab.
- Leaving out tear-out and plumbing. Removing old tops and reconnecting a sink or cooktop are often extra.
If you are tiling a counter or backsplash instead, compare with the tile installation cost calculator.
Estimates only. Real costs depend on region, material, slab yield, and site conditions. Get a written fabricator quote before you budget.
Frequently asked questions
What depth should I use for a standard countertop?
Standard kitchen base cabinets are 24 inches deep, and the countertop usually overhangs the front by about 1.5 inches, for a total of roughly 25.5 inches, or 2.125 ft. The calculator's 2 ft default is a round figure; entering 2.125 raises a 10 ft run from 20 to 21.25 sq ft.
How do I price an L-shaped or U-shaped kitchen?
Measure each run along the wall, add the lengths, and enter the total as the length with the standard depth. Fabricators also measure this way, though some count the corner square only once. A 10 ft run plus an 8 ft run at 2.125 ft deep is 18 × 2.125 = 38.25 sq ft.
Does this estimate include sink cutouts or edge profiles?
No. It prices flat area only. Sink and cooktop cutouts, decorative edges such as ogee or bullnose, backsplashes, and removal of old tops are usually separate line items on a fabricator's quote. Fold them into your rates or add them at the end.
How do quartz, granite, and laminate compare?
Quartz and granite are both stone-priced materials and tend to sit in a similar range, with exotic granite slabs and premium quartz colors at the top. Laminate costs far less and is often installed as a pre-formed top. Solid surface and butcher block sit in between. Use local quotes for the actual rates.
Why do fabricators charge by the square foot?
Slabs are bought and cut by area, and most of the labor scales with area too: templating, cutting, polishing, and setting. Some shops price by the slab instead, which can make small jobs cost more per square foot than this calculator shows.
Estimates only. Verify quantities with your supplier before purchasing.