Area Converter(e.g hectares to acres)

Convert acre(international)
Source Unit

Target Unit

To acre(international)


the acre is a unit of are in land measuring that is used in the imperial and US customary measure systems

one acre is an area of 22 yards multiple by 220 yards

one acre equals to

  • = 1/640 of a square mile
  • =43,560 square feet
  • Roughly 4,046.856 square meter
  • Roughly 40% of a hectare

There are 2 kinds of acre used in USA , The US survey acre and international acre

1 international acre equal to

  • 4,046.8564224 square metres
  • 0.40468564224 hectare (A square with 100 m sides has an area of 1 hectare.)

1 United States survey acre is equal to:

  • 4,046.87261 square metres (1 square kilometre is equal to 247.105 acres)
  • 0.404687261 hectare


the barn is a unit of area used in high-energy physics to express the cross sections of any scattering process

A barn is defined as 10−28 m2 and is approximately the cross-sectional area of a uranium nucleus.


The hectare is a area measure unit in the SI system

One hectare equal to 100 ares (10,000 m2) and primarily used in the measurement of land

An acre is about 0.4047 hectare and one hectare contains about 2.47 acres

square foot

The square foot is an area measure unit used in imperial and U.S. customary system of unit

The square foot is used mainly in United States and partially in Canada, United Kingdom

One square foot is the area of square with sides of 1 foot

square inch

The square inch is a unit of area measurement and equal to the area of a square with sides of one inch

square kilometre

Square kilometre is the SI area measure unit, its symbol is km2 ,

It measure an area whose side is one meter.

One Square kilometre is equal to

  • 1,000,000 square metres (m2)
  • 100 hectares (ha)

One square is also approximately equal to:

  • 0.3861 square miles
  • 247.1 acres

square metre

The square metre is the SI derived unit of area measurement , its symbol is m2

It is defined as the area of a square whose sides measure exactly one metre.

square yard

the square yard is a unit of area measurement in the imperial system of measurement

it is widely used in USA,UK and Canada

it is defined as the area whose side is a yard or 0.9144 metres


Survey township, also called Congressional township is used by the United StatesPublic Land Survey System

A Survey township is an area whose side is 6 miles