View Full Version : Distance around formula

matthew horner
04-18-2004, 11:30 PM
Is there a formula for calculating area in square footage by measuring only the distance around the area in linear feet?

Thank you

04-19-2004, 01:34 PM
Area = length x width

if it's a circle

Area = 3.1415 * r^2

(pi times the radius squared)

If it's some odd trapezoid shape try these formulas:

04-20-2004, 05:46 AM
No, you have to break up the area into geometric shapes, calculate their areas and add together. I wish there was it would make my life easier estimating bulk materials for installs.

D Felix
04-20-2004, 12:14 PM
If you have the irregular shape on a scaled plan, you can use a planimeter to get the square footage. A good digital one will run $900 or more though.

For actual, on-the-ground measurements, no, it won't work....