Convert hectars to square miles (ha to sq mi) and square miles to hectars (sq mi to ha) Online Conversion Calculator - Converter

This calculator-converter provides conversion of hectars to square miles (ha to sq mi) and backwards square miles to hectars (sq mi to ha).

Enter hectars or square miles for conversion:

Select conversion type:

Rounding options:

Conversion Chart / Table
 hectar to square miles Conversion Chart / Table: square miles to hectars Conversion Chart / Table: ha = sq mi 1.0 = 0.00386 2.0 = 0.00772 3.0 = 0.01158 4.0 = 0.01544 5.0 = 0.01931 6.0 = 0.02317 7.0 = 0.02703 8.0 = 0.03089 9.0 = 0.03475 hectar = square miles 10 = 0.03861 20 = 0.07722 30 = 0.11583 40 = 0.15444 50 = 0.19305 100 = 0.38610 500 = 1.93051 1000 = 3.86102 5000 = 19.30511 sq mi = ha 1.0 = 258.99881 2.0 = 517.99762 3.0 = 776.99643 4.0 = 1035.99524 5.0 = 1294.99405 6.0 = 1553.99287 7.0 = 1812.99168 8.0 = 2071.99049 9.0 = 2330.9893 square miles = hectars 10 = 2589.98811 20 = 5179.97622 30 = 7769.96433 40 = 10359.95244 50 = 12949.94055 100 = 25899.88110 500 = 129499.4055 1000 = 258998.811 5000 = 1294994.055

The hectar (symbol or abbreviation: ha, plural form: hectars, British spelling: hectare) is a unit of area used in the International System of Units (SI, metric system). One hectar (ha) = 0.00386102159 square mile = 10 000 square meters (m2)= 0.01 square kilometers = 107 639.104 square feet = 2.47105381 acres = 11 959.9005 square yards = 15 500 031 square inches.