Countertop Calculator
Estimate countertop square footage and cost
Sum of all counter run lengths
Standard: 25.5" (with overhang)
Affects price per sq ft
Total Area
—
sq ft
Slabs Needed
—
slabs
Material Cost
—
USD
With Installation
—
USD
How to Use This Calculator
Our calculator estimates square footage and total cost based on counter dimensions and material choice.
- Measure total length of all counter runs
- Use standard 25.5" depth
- Select countertop material
- Enter specifications
- Factor in sink cutouts (deduct 3-5 sq ft each)
AI Insights
Smart analysis for your project
Smart Estimates
Our AI cross-references material costs, regional pricing, and project complexity for more accurate estimates.
Waste Optimization
AI-calculated waste factors based on project type, not flat percentages. Saves 5-15% on material costs.
Best Practices
Recommendations derived from building codes, contractor data, and thousands of completed projects.
Calculation Formula
Area = Length x (Depth / 12)
Slabs = Area / 45 (standard slab ~45 sq ft)
Cost = Area x Price per sq ft
Frequently Asked Questions
How much do quartz countertops cost?
$50-$120 per sq ft installed. A typical 30 sq ft kitchen costs $1,500-$3,600 for quartz.
Is granite or quartz better?
Quartz is non-porous and more durable. Granite is natural stone with unique patterns but requires annual sealing.