Convert Square Inches to Hectares

Enter the area in square inches below to get the value converted to hectares.

Results in Hectares:
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1 sq in = 6.4516E-8 ha

How to Convert Square Inches to Hectares

Calculators can be used to convert measurements from one unit to another

To convert a square inch measurement to a hectare measurement, multiply the area by the conversion ratio. One square inch is equal to 6.4516E-8 hectares, so use this simple formula to convert:

hectares = square inches × 6.4516E-8

The area in hectares is equal to the square inches multiplied by 6.4516E-8.

For example, here's how to convert 5 square inches to hectares using the formula above.
5 sq in = (5 × 6.4516E-8) = 3.2258E-7 ha

Square inches and hectares are both units used to measure area. Keep reading to learn more about each unit of measure.

Square Inches

One square inch is equal to the area of a square with sides that are 1 inch in length.

The square inch is a US customary and imperial unit of area. A square inch is sometimes also referred to as a square in. Square inches can be abbreviated as sq in, and are also sometimes abbreviated as in². For example, 1 square inch can be written as 1 sq in or 1 in².


One hectare is equal to 10,000 square meters, or the area of a square with 100 meter sides.

The hectare is an SI accepted unit for area for use with the metric system. In the metric system, "hecto" is the prefix for 102. Hectares can be abbreviated as ha, for example 1 hectare can be written as 1 ha.

Square Inch Measurements and Equivalent Hectare Conversions

Common square inch values converted to the equivalent hectare value
Square Inches Hectares
1 sq in 0.000000064516 ha
2 sq in 0.00000012903 ha
3 sq in 0.00000019355 ha
4 sq in 0.00000025806 ha
5 sq in 0.00000032258 ha
6 sq in 0.0000003871 ha
7 sq in 0.00000045161 ha
8 sq in 0.00000051613 ha
9 sq in 0.00000058064 ha
10 sq in 0.00000064516 ha
11 sq in 0.00000070968 ha
12 sq in 0.00000077419 ha
13 sq in 0.00000083871 ha
14 sq in 0.00000090322 ha
15 sq in 0.00000096774 ha
16 sq in 0.0000010323 ha
17 sq in 0.0000010968 ha
18 sq in 0.0000011613 ha
19 sq in 0.0000012258 ha
20 sq in 0.0000012903 ha
21 sq in 0.0000013548 ha
22 sq in 0.0000014194 ha
23 sq in 0.0000014839 ha
24 sq in 0.0000015484 ha
25 sq in 0.0000016129 ha
26 sq in 0.0000016774 ha
27 sq in 0.0000017419 ha
28 sq in 0.0000018064 ha
29 sq in 0.000001871 ha
30 sq in 0.0000019355 ha
31 sq in 0.000002 ha
32 sq in 0.0000020645 ha
33 sq in 0.000002129 ha
34 sq in 0.0000021935 ha
35 sq in 0.0000022581 ha
36 sq in 0.0000023226 ha
37 sq in 0.0000023871 ha
38 sq in 0.0000024516 ha
39 sq in 0.0000025161 ha
40 sq in 0.0000025806 ha

More Square Inch Area Conversions

US Customary
Convert to Square Miles
1 sq in is equal to 2.491E-10 square miles
Convert to Acres
1 sq in is equal to 1.5942E-7 acres
Convert to Square Yards
1 sq in is equal to 0.000772 square yards
Convert to Square Feet
1 sq in is equal to 0.006944 square feet
SI Units
Convert to Square Kilometers
1 sq in is equal to 6.4516E-10 square kilometers
Convert to Square Meters
1 sq in is equal to 0.000645 square meters
Convert to Square Centimeters
1 sq in is equal to 6.4516 square centimeters
Convert to Square Millimeters
1 sq in is equal to 645.16 square millimeters
Other Metric Units
Convert to Ares
1 sq in is equal to 6.4516E-6 ares