Land Area Calculator
Enter the length and width (or all four sides) of a plot to see its area in decimal, katha, bigha and square feet.
Plot shape
Measured in
Total area
4.59 decimal
2,000 sq ft
Katha
2.7778
Bigha
0.138889
Acre
0.045914
Square metre
185.81
Hectare
0.018581
Common questions
How is area worked out when the four sides differ?
Opposite sides are averaged and multiplied: (north + south) ÷ 2 × (east + west) ÷ 2. This is close for plots that are roughly rectangular. For irregular plots, rely on a surveyor.
How many decimals is a 40 ft × 50 ft plot?
40 × 50 = 2,000 sq ft, which is about 4.59 decimal or 2.78 katha.