Hectares to Square Miles

Convert hectares (ha) to square miles (mi²) with formulas, examples, and conversion tables.

ha
mi²
1 ha = 0.003861 mi²
Full precision:0.003861 mi²
Step-by-Step Solution

To convert 1 hectares to square miles, we divide by 258.999 because one square mile equals exactly 258.999 hectares.

1 square mile = 258.999 hectares

Since there are 258.999 hectares in every square mile, we divide our value by this factor:

1 ÷ 258.999 = 0.003861 square miles

So 1 hectares = 0.003861 square miles.

✓Quick check: 0.003861 × 258.999 = 1 hectares
↔ Square Miles to Hectares

How to Convert Hectares to Square Miles

To convert hectares to square miles, divide the value by 258.999.

The Formula

Square Miles = Hectares ÷ 258.999

Key Fact

1 square mile = 258.999 hectares

Tip: To convert square miles back to hectares, multiply by 258.999.

Example Conversions

Example 1: 1 ha = 0.003861 mi²
1 ÷ 258.999 = 0.003861
Example 2: 5 ha = 0.019305 mi²
5 ÷ 258.999 = 0.019305
Example 3: 10 ha = 0.03861 mi²
10 ÷ 258.999 = 0.03861

Hectares to Square Miles Table

HectaresSquare Miles
1 ha0.003861 mi²
2 ha0.007722 mi²
5 ha0.019305 mi²
10 ha0.03861 mi²
20 ha0.07722 mi²
25 ha0.096526 mi²
50 ha0.19305 mi²
100 ha0.3861 mi²
250 ha0.96526 mi²
500 ha1.9305 mi²
1000 ha3.861 mi²

1 Hectare in Other Units

Unit1 ha =
Hectares to Square Kilometers0.01 km²
Hectares to Square Meters10000 m²
Hectares to Square Centimeters100000000 cm²
Hectares to Square Millimeters1e+10 mm²
Hectares to Square Miles0.003861 mi²
Hectares to Acres2.4711 ac
Hectares to Square Yards11959.91 yd²
Hectares to Square Feet107639.15 ft²
Hectares to Square Inches15500031 in²
Hectares to Ares100 a
Hectares to Barns1e+32 b

Related Conversions

Square Meters to Square FeetSquare Feet to Square MetersAcres to HectaresHectares to AcresAcres to Square MetersSquare Meters to AcresSquare Kilometers to Square MilesSquare Miles to Square KilometersSquare Feet to Square InchesSquare Inches to Square Feet