# Convert 1 hectares to square miles

How many square miles are 1 hectares?

hectares (ha)
1 hectares = 0.004 square miles

## Precise decimal and fraction answers

The conversion in square miles rounded to six significant decimal places is 1 ha = 0.00386102 sq mi. The precise fraction answer is 841/217818 sq mi.

### Decimal Precision

Conversion from one to ten decimal places

• 1 ha = 0.004 sq mi
• 1 ha = 0.0039 sq mi
• 1 ha = 0.00386 sq mi
• 1 ha = 0.003861 sq mi
• 1 ha = 0.0038610 sq mi
• 1 ha = 0.00386102 sq mi
• 1 ha = 0.003861022 sq mi
• 1 ha = 0.0038610216 sq mi
• 1 ha = 0.00386102159 sq mi
• 1 ha = 0.003861021585 sq mi

## Hectares to square miles conversion factor and formulas

Formula

The conversion factor between hectares and square miles is 258.999. This represents the ratio of hectares per one square mile. To calculate the value in square miles, we can either divide by the conversion factor or multiply by its inverse.

### Division

To convert from hectares to square miles, divide hectares by 258.999.
The formula is expressed as:
ha ÷ 258.999 = sq mi

### Multiplication

Alternatively we can multiply by the inverse conversion factor to get the same result.
The inverse of 258.999 is 1/258.999 or 0.004. To convert from hectares to square miles, multiply hectares by 0.004.
The formula is expressed as:
ha × 0.004 = sq mi

To convert 1 hectares to square miles, divide 1 hectares by 258.999.
1 ha ÷ 258.999 = 0.004 sq mi

## How large is 1 hectares?

Real world scale examples to visualize the area of 1 hectares / 0.004 square miles

• 1.72 times the surface area of an American football field (6,936 sq-yd)
• 45% of the area of a typical Manhattan city block (237,600 sq-ft)
• 19% of the area of the base of the Great Pyramid of Giza (53,000 sq-m)

Converting hectares to square miles is a conversion between units from separate unit systems - hectares are metric (SI) defined units while square miles are US Customary / UK Imperial .

SI Unit

The hectare is a metric measure of area defined by a square with sides 100 meters in length. One hundred hectares equal a square kilometer. The unit is widely used in the measure of large areas of land. While it is not an official SI unit, the hectare is fully compatible with the metric system and used in most countries which have adopted metric units.

## Reverse this conversion

Convert from square miles to hectares instead.

## 1 hectares to other area units

### Metric

• 1 ha = 1 ha
• 1 ha = 0.01 km2
• 1 ha = 10,000 m2
• 1 ha = 1,000,000 dm2
• 1 ha = 1×108 cm2
• 1 ha = 1×1010 mm2
• 1 ha = 1×1016 µ2
• 1 ha = 1×1022 nm2

### Imperial/U.S.

• 1 ha = 2.471 acre
• 1 ha = 0.004 sq mi
• 1 ha = 11,959.9 sq yd
• 1 ha = 107,639.104 sq ft
• 1 ha = 1.55×107 sq in

## References and Citations

1. International Bureau of Weights and Measures (BIPM) The International System of Units (SI)
2. National Institute of Standards and Technology (NIST) General Tables of Units of Measurement

## Decimal conversions for 1 ha to sq mi

ha sq mi
1.01 ha 0.004 sq mi
1.02 ha 0.004 sq mi
1.03 ha 0.004 sq mi
1.04 ha 0.004 sq mi
1.05 ha 0.004 sq mi
1.06 ha 0.004 sq mi
1.07 ha 0.004 sq mi
1.08 ha 0.004 sq mi
1.09 ha 0.004 sq mi
1.1 ha 0.004 sq mi
1.11 ha 0.004 sq mi
1.12 ha 0.004 sq mi
1.13 ha 0.004 sq mi
1.14 ha 0.004 sq mi
1.15 ha 0.004 sq mi
1.16 ha 0.004 sq mi
1.17 ha 0.005 sq mi
1.18 ha 0.005 sq mi
1.19 ha 0.005 sq mi
1.2 ha 0.005 sq mi
1.21 ha 0.005 sq mi
1.22 ha 0.005 sq mi
1.23 ha 0.005 sq mi
1.24 ha 0.005 sq mi
1.25 ha 0.005 sq mi
1.26 ha 0.005 sq mi
1.27 ha 0.005 sq mi
1.28 ha 0.005 sq mi
1.29 ha 0.005 sq mi
1.3 ha 0.005 sq mi
1.31 ha 0.005 sq mi
1.32 ha 0.005 sq mi
1.33 ha 0.005 sq mi
1.34 ha 0.005 sq mi
1.35 ha 0.005 sq mi
1.36 ha 0.005 sq mi
1.37 ha 0.005 sq mi
1.38 ha 0.005 sq mi
1.39 ha 0.005 sq mi
1.4 ha 0.005 sq mi
1.41 ha 0.005 sq mi
1.42 ha 0.005 sq mi
1.43 ha 0.006 sq mi
1.44 ha 0.006 sq mi
1.45 ha 0.006 sq mi
1.46 ha 0.006 sq mi
1.47 ha 0.006 sq mi
1.48 ha 0.006 sq mi
1.49 ha 0.006 sq mi
1.5 ha 0.006 sq mi
ha sq mi
1.51 ha 0.006 sq mi
1.52 ha 0.006 sq mi
1.53 ha 0.006 sq mi
1.54 ha 0.006 sq mi
1.55 ha 0.006 sq mi
1.56 ha 0.006 sq mi
1.57 ha 0.006 sq mi
1.58 ha 0.006 sq mi
1.59 ha 0.006 sq mi
1.6 ha 0.006 sq mi
1.61 ha 0.006 sq mi
1.62 ha 0.006 sq mi
1.63 ha 0.006 sq mi
1.64 ha 0.006 sq mi
1.65 ha 0.006 sq mi
1.66 ha 0.006 sq mi
1.67 ha 0.006 sq mi
1.68 ha 0.006 sq mi
1.69 ha 0.007 sq mi
1.7 ha 0.007 sq mi
1.71 ha 0.007 sq mi
1.72 ha 0.007 sq mi
1.73 ha 0.007 sq mi
1.74 ha 0.007 sq mi
1.75 ha 0.007 sq mi
1.76 ha 0.007 sq mi
1.77 ha 0.007 sq mi
1.78 ha 0.007 sq mi
1.79 ha 0.007 sq mi
1.8 ha 0.007 sq mi
1.81 ha 0.007 sq mi
1.82 ha 0.007 sq mi
1.83 ha 0.007 sq mi
1.84 ha 0.007 sq mi
1.85 ha 0.007 sq mi
1.86 ha 0.007 sq mi
1.87 ha 0.007 sq mi
1.88 ha 0.007 sq mi
1.89 ha 0.007 sq mi
1.9 ha 0.007 sq mi
1.91 ha 0.007 sq mi
1.92 ha 0.007 sq mi
1.93 ha 0.007 sq mi
1.94 ha 0.007 sq mi
1.95 ha 0.008 sq mi
1.96 ha 0.008 sq mi
1.97 ha 0.008 sq mi
1.98 ha 0.008 sq mi
1.99 ha 0.008 sq mi