Parker O’Ring Calculator
This Parker O’Ring calculator helps engineers and designers evaluate the suitability of an O-ring for a specific gland (groove) design. Enter your hardware and O-ring dimensions to calculate critical sealing parameters like squeeze, stretch, and gland fill.
Select the type of sealing application.
The internal diameter of the cylinder or housing (in mm).
The diameter of the O-ring groove (in mm). For piston seals, this is smaller than the bore.
The width of the O-ring groove (in mm).
The diameter of the O-ring’s cross-section (in mm).
The inside diameter of the O-ring (in mm).
O-Ring Squeeze
14.7%
Within recommended range for a static seal.
1.1%
Installed Stretch
81.6%
Gland Fill
3.51 mm
Installed O-Ring CS