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Table for survey ft to inches

Table for survey ft to inches
by Jeff Blood on 10/07/05 at 18:37:56

Just trying to find a cheat sheet or a conversion factor for survey feet (00.25) to inches.  

Thanks!


Re: Table for survey ft to inches
by Robert Fogt on 10/07/05 at 23:24:07

Is it survey feet to survey inches?  There are 12 survey inches in a survey foot.

Though a survey foot is 0.999998 of an international foot, so there are 12.000024000048 international inches in a survey foot.

There is really not enough of a difference to worry about. The difference comes over long distances, such as a survey mile compared to an international mile.


Re: Table for survey ft to inches
by Jeff on 10/08/05 at 09:29:45

ok, I thought...  On the grading plan I have it has numbers like 1842.54.  The base elevation is 1840.00.  So, that just means 2ft 6in diff...???  The .54 is in ft not inches.  Does this help or confuse????

Jeff


Re: Table for survey ft to inches
by Robert Fogt on 10/08/05 at 17:08:46

No there would not even be that much of a difference.

1840 feet is 1839.996 survey feet
1842.54 survey feet is 1842.544 feet

The difference between survey foot and international foot is how they were defined. The survey foot was defined as 1200/3937 meters, while the international foot was rounded and defined as exactly 0.3048 meters.

This is only a  0.0002% difference.

You can find the conversion on the Length page. It is just listed as "foot [survey]" instead of "survey foot".


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