How big is an acre? – Measuring Your Woodland

People who have not owned forestry or agricultural land can often find it hard to visualise what an acre looks like. This is an attempt to help you visualise how big an area one acre is.
An acre measures an area of land and is about 70 yards by 70 yards, which means about 4,900 square yards (or roughly 44,000 square feet).
A typical football pitch is about 110 yards by about 70 yards (the rules allow some flexibility in the size) so that a pitch covers about one and a half acres of field or, including the immediately surrounding land that goes with it, the football pitch takes up about 2 acres.
Another way to visualise one acre is as the area in which you could park about 150 cars. A typical supermarket, excluding the car park, covers about 0.6 of an acre (about 26,000 square feet).
A 9 acre woodland might be only equivalent to about 6 football pitches, but it will usually appear bigger than that for various reasons: you can’t see across it and a wood will have bumps and dips and other features, but the main thing is that a forest is three-dimensional. The trees give the extra dimension which makes a woodland so much more interesting and so much richer in biodiversity, and make it seem much bigger.
The other measurement often used for surface area is the metric measure – hectares. A hectare is precisely 100 metres by 100 metres and is much larger than an acre. About 2.47 acres make up one hectare, so an acre is only about 40% of the size of a hectare. One reason that acres, rather than hectares, are used in the UK is that, being a smaller measure, you get more of them in a given piece of land and it is easier to remember a round number of acres than a hectare measurement with a decimal point. However, one advantage of using hectares is that more detailed maps use grid lines where the distance between the lines is equivalent to 100 metres. The result of this is that each square covers exactly one hectare or approximately two and a half acres.
If you are trying to measure in approximate terms an acre of woodland you can pace it out as about 80 paces by 80 paces, though in woodlands people often take shorter paces so 70 yards may take more like 90 paces.
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38 comments so far
Ron Byng
14 December, 2007
Thanks, it puts things in prospective.
Now how big is my garden?
Ron Graham
14 December, 2007
Glad someone cleared that up, thanks.
Tracy Pepler
14 December, 2007
Well Ron, how many cars can you park in your garden?
I think that helps Angus! I certainly know that an 8 acre wood feels plenty big enough when you are looking after it!
Ron Byng
15 December, 2007
Does someone out there know me?
My last house had a large garden and I did actually have 24 cv’s in it.[Citroens}
Tracy Pepler
15 December, 2007
LOL
I must have a special gift!
So, Ron, using Angus’s's’s maths, that makes your garden smaller than a supermarket carpark.
Glad to help!
john
12 April, 2008
thanks now i no how big my land is going to be
Mark
27 June, 2008
It’s taken me 51 years to find out how big an acre is! Brilliantly and simply explained. I’m off to pace out the bit of land at the back of my house.
Mary
28 June, 2008
Excellent explanation, much better than the algebra way!!
Ruth
24 August, 2008
That’s brilliant, I can now work out how big the horses fields are by just looking at them.
Doris
5 January, 2009
Thank you i needed to find out something about the rainforest inacres and now i can
jason
10 February, 2009
Thanks iv just strided my pad out & its 90yds x 40ydy 3600sq yds just trying 2 work out how many houses i can fit in the garden cos times r hard & im getting fed up with mowing harlf an acre.
Steve
4 March, 2009
Thanks, hope to buy approx. 6 acres and needed to get some idea of size.
Chirs
22 May, 2009
Thanks for this, now I can go and pace out my one hectare for my kins domain.
TRACI
12 July, 2009
ok but 70 paces from where? i mean how do you know where to start?
Andy Triggs
7 August, 2009
Traci: start at the edge, but stride backwards as a normal forward stride will be too long.
aby
8 August, 2009
thanks so much for the simple xplanation.it’s unbelievable that five years as a survey student,i am just getting to knw and understand what an acre mean
I an atkinson
25 August, 2009
Thanks I have to quote for 20 acres of woodland and I couldn’t visualise the size.
Adrian faife
18 January, 2010
Hi
any one help me find some woods near teeside area
or near north with pond or lake(2,3 acres)
paul redfearn_glen miller
14 February, 2010
can you tell me if i can buy up some arable approx 30 acres
land and turn that land into a forest.
with small lake
emma
22 February, 2010
Thanks but i can’t figure out how big an eigth of an acre is….
bev
4 April, 2010
I’ve been looking for something this simple for ages on the net. thanks very much!
Jennie
9 April, 2010
Thanks! I’m a student, forever asking farmers “how many acres the animals are grazing” without having any idea how big that is! Now it seems so simple!
Mo
28 May, 2010
Can anyone help me? Looking for a small woodland Welsh borders area
Admin
28 May, 2010
Have you had a look at the front page of the website?
or
http://www.woodlands.co.uk/buying-a-wood/mid-wales-and-shropshire/
Hope that helps.
Libby
27 June, 2010
I am 11 and I was doing a rainforest subject and I needed to find how many yards an acre was, and I did! This site is really helpful. Thank you!
(By the way I got a merit for my subject)
heidi
24 July, 2010
my son just asked how bigs an acre, brill i will explain football picth,he will understand thank you, as my dad just bought 5 acres in wales for us all to enjoy,hoildays,campfires,planting,birds,wildlife,teepee up, what best ways for my children to grow up with, nature and wilflife,can’t wait for our first weekend stay,loving this site,so much to read and look forward to doing,brillant site!!!
Deborah
21 March, 2011
Land for sale Exeter, Devon. Suit equine, orchard, meadow. South facing. 2/3 grass, 1/3 wood. Approx 6 acres but need to pace it out, now I know how.
Len
21 June, 2011
Thanks a million. I am almost 80 and finally I have an idea about the size of an acre. Really grateful.
manny
4 April, 2012
finally understood how big an acre is, wonder why it wasnt explained to me like this in high school.
Mick Mallender
17 May, 2012
How big is 3millon acres in respect to England please
Manj Singh
28 May, 2012
Thank you. Great help…
Google Calculator
16 June, 2012
Mick
if you google: england area
google calc tells that it is 50,346 square miles
if you google: 3000000 acres in square miles
google calc performs the conversion and tells it is 4687.5 square miles
so 3 million acres is about 9% of the size of England
Google Calculator
16 June, 2012
typo: 11%
Alden Tagg
26 August, 2012
One thing about an acre no one has mentioned here. An acre is any area of 43,560 square feet. Conceivably an acre could be 1 foot wide and 43,560 feet long. A square acre is about 208′ X 208′. Finding that in the field would also be a bit unusual.
OK?
John
21 January, 2013
Have just watched the final part of Living with Monkeys during the program the narrator stated 125 million square yards a week of forest is being lost to illegal logging,
andrew
17 February, 2013
hi looking at my deeds to the house, the land is 1 acre 2 rods and 39 perches.
could some please tell me how big the land is in laymans terms
thanks andy
Delilah
25 April, 2013
Hello we are selling our 3 wood lots of 73 Hectares about 184 acres., a person asked me how many cords of wood are in an acre of land. I am in Sackville, New Brunswick, so not the B.C. woods where you would get a lot more cords per acre., so anyway any idea on an answer to this one?
Thank You,
Delilah
damilola silas
2 May, 2013
firstly, I dont know the differance between acres and hectares, but now this website have explain it to me, though am a farmer and tractor driver do cheat me, but now is not so again. Thank you!