The Stone StoreProducts from the Earth for Construction, Landscape & Decor  
   
 

Calculating Circles

Driveway Example #1

Example 1 - Length Around a Circle

(Diameter x 3.1416 = Linear Feet Around a Circle)

Sample, 18' round Swimming Pool:

  • 18' x 3.1416 = 56.55' (total linear feet around pool)
  • To add 2' of stone around this pool 3" deep:
    56.55' x 2' = 113.10'
  • 113.10' x 0.25 (3" depth) = 28.28 Cubic Feet
  • 28.28 / 27 = 1.05 Cubic Yards
   

Driveway Example # 2

Example 2 - Square Footage Inside a Circle

(Length x Width x 0.7854 = Square Feet)

Sample, 24' round Swimming Pool:

  • 24' x 24' = 576'
  • 576' x 0.7854 = 452.39 Square Feet (total inside pool)
  • To add 4" of sand evenly across pool:
    452.39' x .33 (4" depth) = 149.29 Cubic Feet
  • 149.29 / 27 = 5.53 Cubic Yards
To be safe, always round up. You would order 6 Cubic Yards of sand.

Due to the nature of our earth’s products: color, exact sizing, and special characteristics cannot be guaranteed.
Please be aware of computer monitors and desktop printers when selecting colors whereas they may appear
different from the actual. Please visit our Terms and Conditions page / Product quality section for further details.
7535 Railroad Avenue | Hanover, Maryland 21076-3141 | Toll-free 888-766-4242 | Fax 410-766-2002
Updated: 7/12/11 Copyright © The Stone Store. All rights reserved. www.thestonestore.com