Polygon Area calculator.
Measure an irregular plan outline from ordered coordinate points.
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.
Enter vertices around one simple boundary in order. The last point connects to the first. Intersecting edges and holes are rejected or must be handled separately.
A worked example
Illustrative inputs only. Product properties and design dimensions are not recommendations for your project.
- X coordinate
- 0 m
- Y coordinate
- 0 m
- X coordinate
- 4 m
- Y coordinate
- 0 m
- X coordinate
- 4 m
- Y coordinate
- 3 m
- X coordinate
- 0 m
- Y coordinate
- 3 m
Polygon area: 12 m²
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.
Method: dimensional arithmetic and user-supplied specifications. Software checks: 2026-10-04. Calculation and review policy.