One ground is 2,400 sq ft in Tamil Nadu, the figure published in the state survey department’s conversion table. That is a 40 × 60 ft plot, about 222.97 m² or 5.5 cents. Half a ground is 1,200 sq ft and one and a half grounds are 3,600 sq ft. The unit is a Chennai habit, so outside Tamil Nadu the same word may be used more loosely.
Formula
Ground to Square Feet conversion table
| Ground | Square Feet |
|---|---|
| 1 ground | 2,400 ft² |
| 2 ground | 4,800 ft² |
| 3 ground | 7,200 ft² |
| 4 ground | 9,600 ft² |
| 5 ground | 12,000 ft² |
| 6 ground | 14,400 ft² |
| 7 ground | 16,800 ft² |
| 8 ground | 19,200 ft² |
| 9 ground | 21,600 ft² |
| 10 ground | 24,000 ft² |
| 12 ground | 28,800 ft² |
| 15 ground | 36,000 ft² |
| 20 ground | 48,000 ft² |
| 25 ground | 60,000 ft² |
| 30 ground | 72,000 ft² |
| 40 ground | 96,000 ft² |
| 50 ground | 120,000 ft² |
| 60 ground | 144,000 ft² |
| 70 ground | 168,000 ft² |
| 75 ground | 180,000 ft² |
| 80 ground | 192,000 ft² |
| 90 ground | 216,000 ft² |
| 100 ground | 240,000 ft² |
Where you’ll use it
Chennai land prices are routinely quoted per ground, while apartment prices, building approvals and floor space index rules use square feet or square meters. Converting a ground to square feet lets you compare a land rate with a built-up rate, work out how much floor area a plot allows, or check a developer’s claim of “one ground” against the sale deed’s dimensions.
Tip: A ground is 2,400 sq ft of land area, not built-up area. When a joint development deal promises a share of flats “per ground”, ask for the total square feet of built-up area in writing.