| 0in² | 0ha |
| 1in² | 6.4516 × 10⁻⁸ha |
| 2in² | 1.29032 × 10⁻⁷ha |
| 3in² | 1.93548 × 10⁻⁷ha |
| 4in² | 2.58064 × 10⁻⁷ha |
| 5in² | 3.2258 × 10⁻⁷ha |
| 6in² | 3.87096 × 10⁻⁷ha |
| 7in² | 4.51612 × 10⁻⁷ha |
| 8in² | 5.16128 × 10⁻⁷ha |
| 9in² | 5.80644 × 10⁻⁷ha |
| 10in² | 6.4516 × 10⁻⁷ha |
| 11in² | 7.09676 × 10⁻⁷ha |
| 12in² | 7.74192 × 10⁻⁷ha |
| 13in² | 8.38708 × 10⁻⁷ha |
| 14in² | 9.03224 × 10⁻⁷ha |
| 15in² | 9.6774 × 10⁻⁷ha |
| 16in² | 0.000001032256ha |
| 17in² | 0.000001096772ha |
| 18in² | 0.000001161288ha |
| 19in² | 0.000001225804ha |
| 20in² | 0.00000129032ha |
| 21in² | 0.000001354836ha |
| 22in² | 0.000001419352ha |
| 23in² | 0.000001483868ha |
| 24in² | 0.000001548384ha |
| 25in² | 0.0000016129ha |
| 26in² | 0.000001677416ha |
| 27in² | 0.000001741932ha |
| 28in² | 0.000001806448ha |
| 29in² | 0.000001870964ha |
| 30in² | 0.00000193548ha |
| 31in² | 0.000001999996ha |
| 32in² | 0.000002064512ha |
| 33in² | 0.000002129028ha |
| 34in² | 0.000002193544ha |
| 35in² | 0.00000225806ha |
| 36in² | 0.000002322576ha |
| 37in² | 0.000002387092ha |
| 38in² | 0.000002451608ha |
| 39in² | 0.000002516124ha |
| 40in² | 0.00000258064ha |
| 41in² | 0.000002645156ha |
| 42in² | 0.000002709672ha |
| 43in² | 0.000002774188ha |
| 44in² | 0.000002838704ha |
| 45in² | 0.00000290322ha |
| 46in² | 0.000002967736ha |
| 47in² | 0.000003032252ha |
| 48in² | 0.000003096768ha |
| 49in² | 0.000003161284ha |
| 50in² | 0.0000032258ha |
| 51in² | 0.000003290316ha |
| 52in² | 0.000003354832ha |
| 53in² | 0.000003419348ha |
| 54in² | 0.000003483864ha |
| 55in² | 0.00000354838ha |
| 56in² | 0.000003612896ha |
| 57in² | 0.000003677412ha |
| 58in² | 0.000003741928ha |
| 59in² | 0.000003806444ha |
| 60in² | 0.00000387096ha |
| 61in² | 0.000003935476ha |
| 62in² | 0.000003999992ha |
| 63in² | 0.000004064508ha |
| 64in² | 0.000004129024ha |
| 65in² | 0.00000419354ha |
| 66in² | 0.000004258056ha |
| 67in² | 0.000004322572ha |
| 68in² | 0.000004387088ha |
| 69in² | 0.000004451604ha |
| 70in² | 0.00000451612ha |
| 71in² | 0.000004580636ha |
| 72in² | 0.000004645152ha |
| 73in² | 0.000004709668ha |
| 74in² | 0.000004774184ha |
| 75in² | 0.0000048387ha |
| 76in² | 0.000004903216ha |
| 77in² | 0.000004967732ha |
| 78in² | 0.000005032248ha |
| 79in² | 0.000005096764ha |
| 80in² | 0.00000516128ha |
| 81in² | 0.000005225796ha |
| 82in² | 0.000005290312ha |
| 83in² | 0.000005354828ha |
| 84in² | 0.000005419344ha |
| 85in² | 0.00000548386ha |
| 86in² | 0.000005548376ha |
| 87in² | 0.000005612892ha |
| 88in² | 0.000005677408ha |
| 89in² | 0.000005741924ha |
| 90in² | 0.00000580644ha |
| 91in² | 0.000005870956ha |
| 92in² | 0.000005935472ha |
| 93in² | 0.000005999988ha |
| 94in² | 0.000006064504ha |
| 95in² | 0.00000612902ha |
| 96in² | 0.000006193536ha |
| 97in² | 0.000006258052ha |
| 98in² | 0.000006322568ha |
| 99in² | 0.000006387084ha |
The square inch is a unit of area and is an imperial unit with the symbol in².
One square inch is equal in area to a square with edges one inch in length.
The square inch is a common unit of measurement in the UK and US.
The hectare is a unit of area and is a non-SI but metric unit with the symbol ha.
It represents the area equal to that of a square with edges 100m long (ie 1hm² or 10,000m²). This is the equivalent to about 2.47 acres.
Its size is down to its use primary use; that for measuring the size of land.