Advanced Room Area Calculator | Calculate & Sum Floor Plans

Advanced Area Calculator

Calculate and sum the areas of rectangular, triangular, and irregular quadrilateral rooms. Perfect for floor plans, offices, and construction projects.

Add New Area

Select Room:

Custom Name:

Room Shape:

Rectangular

Triangular

Irregular

Dimensions (in meters):

Width

Length

Quadrilateral Dimensions (in meters):

Enter the 4 side lengths and one diagonal. Example: S1=4m, S2=3m, S3=6m, S4=5m, Diagonal=6m

Side 1

Side 2

Side 3

Side 4

Diagonal

Calculated Areas

Bedroom 1

Rectangle | 4.5m × 3.5m

15.75 m²

Living Room

Triangle | 5.0m × 4.0m

10.00 m²

Study

Quadrilateral | Sides: 4,3,6,5m

15.00 m²

Total Surface Area:

40.75 m²

Instructions

Select a room from the menu or enter a custom name
Choose between rectangular, triangular, or irregular quadrilateral shapes
For quadrilaterals: enter the 4 side lengths and a diagonal
Click Calculate Area to see the result
Press Add to List to include the calculation
Repeat to add more areas. The total updates automatically!
You can remove individual areas with the × button