Spliced, Vulcanized O Rings Length Calculator

Extruded spliced, vulcanized or Hollow O-ring cut length or developed length can be calculated from any of two variables – ID, OD or Cross Section (CS).

1)    [( OD + ID ) / 2 ] x Pi = Length , where Pi=3.14159

2)    ( OD – CS ) x Pi = Length, 

3)    (ID + CS ) x Pi = Length, 

Use either millimeters or inches for input. Result should be interpreted in your input unit – mm or inch. 

Just enter any of the two variables below and it will automatically calculate the results.