FREE ONLINE TOOLFree Room Area
Free Room Area
Calculator
Free advanced room area calculator for rectangles, irregular composite rooms and custom polygon corners, with SVG preview, perimeter, wall area, volume, conversions, cost, CSV export and local persistence.
FreeUse this tool without paying.No sign upStart with the tool right away.Clear stepsRead the tool’s own guidance.
About Free Room Area Calculator
Go beyond length × width. Calculate a simple room, build an irregular footprint from added/subtracted geometric zones, or enter polygon corner coordinates for exact shoelace area, perimeter, centroid, wall surface, room volume and an auto-scaled SVG measurement preview.
Workspace options
- Measurement system
- Room / project name
- Length
- Width
- Identical rooms
- Floor exclusion area
Available actions
- Quick room
- Shape composer
- Polygon corners
- + Add shape
- Remove last
- + Add corner