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

Convert Square Miles to Hectares

Convert from square miles to hectares with this simple formula:
hectares = square miles × 258.998811
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1 Square Mile = 258.998811 Hectares

Learn How to Convert Square Miles to Hectares Using our Conversion Formula

Converting a square mile area measurement to a hectare measurement involves multiplying your area by the conversion ratio to find the result. A square mile is equal to 258.998811 hectares, so to convert simply multiply by 258.998811.

For example, 5sq mi = (5 × 258.998811) = 1,294.994055ha.

Learn more about finding the area of your space using our area calculator.

Square miles and hectares are both units used to measure area. Learn more about area and find more area measurement conversion calculators. A square mile is an imperial measurement and can be abbreviated as sq mi, for example 1sq mi. A hectare is a metric measurement and can be abbreviated as ha, for example 1ha. Learn more about the metric system, including the common unit prefixes and how to convert between metric units.

square miles and hectares are units used to measure area
Convert Hectares to Square Miles

More Area Conversions

Convert to Acres Area
1sq mi is equal to 640.004929 acres
Convert to Square Yards Area
1sq mi is equal to 3,097,600 square yards
Convert to Square Feet Area
1sq mi is equal to 27,878,400 square feet
Convert to Square Inches Area
1sq mi is equal to 4,014,489,599 square inches
Convert to Square Kilometers Area
1sq mi is equal to 2.589988 square kilometers
Convert to Ares Area
1sq mi is equal to 25,900 ares
Convert to Square Meters Area
1sq mi is equal to 2,589,988 square meters
Convert to Square Centimeters Area
1sq mi is equal to 25,899,881,100 square centimeters
Convert to Square Millimeters Area
1sq mi is equal to 2,589,988,110,000 square millimeters

Square Mile Measurements and Equivalent Hectare Conversions

Common square mile values converted to the equivalent hectare value
Square Miles Hectares Square Miles Hectares Square Miles Hectares
1 259 21 5,439 41 10,619
2 518 22 5,698 42 10,878
3 777 23 5,957 43 11,137
4 1,036 24 6,216 44 11,396
5 1,295 25 6,475 45 11,655
6 1,554 26 6,734 46 11,914
7 1,813 27 6,993 47 12,173
8 2,072 28 7,252 48 12,432
9 2,331 29 7,511 49 12,691
10 2,590 30 7,770 50 12,950
11 2,849 31 8,029 51 13,209
12 3,108 32 8,288 52 13,468
13 3,367 33 8,547 53 13,727
14 3,626 34 8,806 54 13,986
15 3,885 35 9,065 55 14,245
16 4,144 36 9,324 56 14,504
17 4,403 37 9,583 57 14,763
18 4,662 38 9,842 58 15,022
19 4,921 39 10,101 59 15,281
20 5,180 40 10,360 60 15,540