What’s a hectare?

One of the common questions we get comes when dealing with measurements in agriculture.  The first is what is the difference between an acre and a hectare, whats a hectare, why us it, can I convert etc. The first difference is acres are used in the Imperial (American System) which takes up 43,560 square feet (13277 square meters) while a hectare is part of the metric system.  A hectare is not part of the International System of Units (SI) but is the scientific standard for area.  A hectare is 10,000 square meters (107,639 sq ft) which is also the size of the international rugby field.  (a little fact I got from Google)

What if I want to convert from acres to hectares?  When going from acres to hectares divide your acres by 2.471 example: 5 ac / 2.471 = 2.023 ha

OR you can go the other way and convert ha to ac by multiplying your ac by 2.471 example: 2.023 ha X 2.471 = 5 ac

How can I determine how much my garden, land, pot or crate is in acres?

1) find the your area in square feet by using the formal Length X Height

2) Then DIVIDE that by 43,560 sq ft (1 acre) – then from there you can convert to hectares.

Example 25×25 = 635 sq ft / 43560 = 0.o143 acres or / 2.471 = 0.0058 hectares.

Hope that helps – Dr. Dirt aka the Poopsmith

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