Inputs
Countertop Segments Rectangular pieces
| # | Length | Width | Remove |
|---|
Cutouts Subtract area
| # | Length | Width | Type (sink, hob, etc.) | Remove |
|---|
Backsplash
Backsplash area = length × height (uses selected unit).
Overhang
Overhang area = width × exposed edge length (uses selected unit).
Example Data Table
Common configurations with typical dimensions. Click Load Example above to auto-fill one scenario.
| Layout | Segments (L × W) | Cutouts | Backsplash (L × H) | Overhang (W × Edge L) | Suggested Material |
|---|---|---|---|---|---|
| Straight run | 120" × 25" | None | 120" × 4" | 1.25" × 10' | Laminate |
| L‑shape | 96" × 25", 72" × 25" | 22" × 18" sink | 168" × 4" | 1.5" × 12' | Granite |
| U‑shape | 72" × 25", 96" × 25", 72" × 25" | 30" × 20" cooktop | 240" × 4" | 1.5" × 18' | Quartz |
Reference Data
Square Foot per Linear Foot by Counter Depth
Useful for quick takeoffs on straight runs without cutouts.
| Depth (in) | Depth (ft) | Sq ft per linear foot |
|---|---|---|
| 24 | 2.00 | 2.00 |
| 25 | 2.08 | 2.08 |
| 26 | 2.17 | 2.17 |
| 30 | 2.50 | 2.50 |
| 36 | 3.00 | 3.00 |
Backsplash Coverage per Linear Foot
Area contributed per 1 linear foot of wall at common heights.
| Backsplash height (in) | Height (ft) | Area per linear foot (sq ft) |
|---|---|---|
| 3 | 0.25 | 0.25 |
| 4 | 0.33 | 0.33 |
| 6 | 0.50 | 0.50 |
| 10 | 0.83 | 0.83 |
| 18 | 1.50 | 1.50 |
Typical Slab/Sheet Sizes and Coverage
Approximate stock dimensions; verify actual availability with your supplier.
| Material | Typical size (in) | Area (sq ft) | Notes |
|---|---|---|---|
| Laminate sheet | 48 × 96 | 32.00 | Common for straight runs; seams on corners. |
| Quartz slab | 65 × 120 (varies) | 54.17 | Engineered stone; consistent patterning. |
| Granite slab | 65 × 110 (varies) | 49.65 | Natural stone; pattern matching increases waste. |
| Butcher block panel | 25 × 96 | 16.67 | Often prefinished; ideal for islands and runs. |
| Solid surface sheet | 30 × 144 | 30.00 | Thermoformable; integrated sinks possible. |
Results
Gross area (segments)
0.00 sq ft
Cutouts area
0.00 sq ft
Backsplash area
0.00 sq ft
Overhang area
0.00 sq ft
Net area before waste
0.00 sq ft
Total waste %
0.0%
Waste area
0.00 sq ft
Final area
0.00 sq ft
Price per sq ft
$0.00
Subtotal
$0.00
Tax
$0.00
Total cost
$0.00
All results are estimates. Always verify with your fabricator/installer.
Formula Used
- Convert all lengths to feet: in ÷ 12; cm ÷ 30.48.
- Segment area = Σ(
lengthi × widthi). - Cutouts area = Σ(
length × width) subtracted from segments. - Backsplash area =
total length × height. - Overhang area =
overhang width × exposed edge length. - Net before waste =
segments − cutouts + backsplash + overhang. - Final area =
net × (1 + total waste % ÷ 100). - Cost =
final area × price per square foot.
Total waste % = base waste % + edge/profile extra %.
How to Use
- Select units and a material preset or set your own price.
- Add rectangular segments for each run; enter length and width.
- Add cutouts for sinks, hobs, etc., with their opening sizes.
- Enter backsplash length and height, if included.
- Enter overhang width and exposed edge length to include the lip.
- Adjust waste percentages to suit material and edge profile.
- Press Calculate, then export CSV or PDF for records.
FAQs
Typically the strip along the wall behind the counter. Enter its total length across walls and the height you plan to install.
Waste depends on material, seams, and pattern matching. Natural stone often needs 10–20%. Engineered materials and laminates can be lower. Confirm with your supplier.
Only on exposed edges. Measure those edges end‑to‑end and multiply by your overhang width to estimate the lip area.
Yes. Choose centimeters in the unit selector. The calculator converts everything to square feet internally and reports in sq ft.
Costs are indicative based on your price per square foot and waste. Final installed pricing also includes templating, seams, supports, delivery, and labor.