Countertop Net Surface calculator.
Distinguish measured countertop face area, circular cutouts and separate rectangular backsplashes.
Your inputs
Use measurements from your plan and properties from your chosen product. Any prefilled values are illustrative.
A clear estimate starts here.
Enter your dimensions and product details to see the quantity and purchase breakdown.
Formula and assumptions
How this calculation works.
Distinguish measured countertop face area, circular cutouts and separate rectangular backsplashes. No countertop support, fabrication tolerance, appliance clearance or structural choice.
A worked example
Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.
- Disjoint section length
- 2 m
- Section width
- 1 m
- Circular cutout diameter
- 0 m
- Circular cutout count
- 0
- Other measured cutout area
- 0.5 m²
- Separate backsplash length
- 2 m
- Separate backsplash height
- 0.2 m
Net face and backsplash area: 1.9 m²
This is surface area, not slab ordering, seams, support design or a cutout fit check. Sections and cutouts must not overlap.
Before you purchase
Use dimensions from your plan and properties from your chosen product. Any design spacing, section or fixing pattern must already be specified.
No countertop support, fabrication tolerance, appliance clearance or structural choice.
Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.