Plot Area Calculator — Rectangle, Irregular & Triangular Plots
Calculate plot area from its sides for rectangular, irregular four-sided (quadrilateral) and triangular plots, in every land unit.
Inputs
ft
ft
Plot area
2,400 sq ft
222.97 sq m · 266.67 sq yd (gaj)
Sketch (to scale)
Area in other units
- Square Meter222.9673
- Square Yard266.6667
- Acre0.055096
- Guntha2.2039
- Bigha (Rajasthan (Pucca))0.088154
- Cent5.5096
- Hectare0.022297
How this calculator works
Rectangles use length × width. Triangles use Heron’s formula from three sides. An irregular four-sided plot is split along a diagonal into two triangles, so you need the four sides and one diagonal — that is the only way to fix its exact shape.
Frequently asked questions
Four sides alone do not fix a shape — the same four sides can make many different quadrilaterals with different areas. The diagonal splits the plot into two triangles whose areas are exact.