# [OSGeo-Discuss] How do feet work?

Landon Blake lblake at ksninc.com
Tue Sep 23 12:15:47 PDT 2008

```This is a very interesting question.

You must first remember that there are two kinds of feet. The US survey
foot and the international foot.

Secondly, you must remember that different professions work with the
foot unit in different ways. For example, engineers and surveyors use
tenths, hundredths, and thousandths of feet, while architects,
contractors, and just about everyone else uses inches.

I rarely see yards used as a unit, except for in construction and volume
calculations.

So, I think your most common units would look something like this:

1/1000 Foot, 1/100 Foot, 1/10 Foot, 1 Foot, 1 Mile

1/32 Inch, 1/16 Inch, 1/8 Inch, 1 Inch, 1 Foot, 1 Mile

Hope that helps.

Landon

________________________________

From: discuss-bounces at lists.osgeo.org
[mailto:discuss-bounces at lists.osgeo.org] On Behalf Of Paul Austin
Sent: Tuesday, September 23, 2008 11:31 AM
To: OSGeo Discussions
Subject: [OSGeo-Discuss] How do feet work?

Hi guys,

I'd like some input from the US folks on how they deal with feet in
mapping in relation to rules.

For metres life is simple you do divisions at 1mm, 1cm, 1dm, 1m, 10m,
100m, 1km, 10km, 100km etc.

For imperial things get a little more interesting as you have to deal in
inches, feet (maybe yards) and miles. What would a similar sequence of
ruler divisions be in the imprerial world?

1/8". 1/4", 1/2", 1", 1', 1yd, 100yd, 500yd, 100yd, 1mi, 10mi, 100mi,
1000mi?

Cheers,
Paul

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